{ "id": "c72649704c7138de437ecef8bc7c656cc1189b64", "text": "METEOROLOGICAL JOURNAL,\n\nKEPT BY THE ASSISTANT SECRETARY\n\nAT THE APARTMENTS OF THE\n\nROYAL SOCIETY,\n\nBY ORDER OF\n\nTHE PRESIDENT AND COUNCIL.\n\nMDCCCXXVIII.\n## METEOROLOGICAL JOURNAL FOR JANUARY, 1827.\n\n| 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks. |\n|-----------------|-----------------|----------------------------------------|-----------------------|-----------------------------------|-------------------------------|----------|\n| Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. Self-registering. | Lowest. Highest. | |\n| 1 | 29.940 | 47.0 | 29.764 | 48.5 | 43 | 45.5 | 47.5 | 44.0 | 47.5 | SW | Overcast. |\n| 2 | 29.526 | 45.0 | 29.611 | 38.0 | 37 | 37.0 | 37.5 | 35.0 | 38.0 | NW | Fine. |\n| 3 | 29.545 | 35.5 | 29.463 | 37.0 | 16 | 22.5 | 28.0 | 16.0 | 29.0 | NE | Cloudy. |\n| 4 | 29.641 | 30.5 | 29.675 | 32.0 | 18 | 20.0 | 26.0 | 18.0 | 48.2 | NW | Overcast and foggy. |\n| 5 | 30.054 | 32.0 | 30.174 | 33.1 | 28 | 28.5 | 30.0 | 25.9 | 30.0 | N var. | Cloudless—strong haze. |\n| 6 | 30.334 | 32.0 | 30.271 | 34.0 | 21 | 28.4 | 32.4 | 26.0 | 39.2 | SW | Strong haze—hail and rain. |\n| 7 | 30.108 | 36.0 | 30.090 | 37.8 | 38 | 39.2 | 42.0 | 32.2 | 46.7 | SW | Strong fog. |\n| 8 | 29.991 | 40.2 | 29.926 | 42.2 | 42 | 46.6 | 49.2 | 40.8 | 49.6 | SW | Strong fog. |\n| 9 | 29.867 | 43.9 | 29.789 | 45.2 | 38 | 42.1 | 45.2 | 42.0 | 45.2 | W var. | Fine—light clouds and haze. |\n| 10 | 29.875 | 43.0 | 29.462 | 43.7 | 39 | 40.7 | 44.3 | 39.0 | 49.5 | SW | Rain—hazy—brisk wind. |\n| 11 | 29.293 | 42.9 | 29.263 | 43.8 | 39 | 39.0 | 39.2 | 37.4 | 39.2 | SW | Fine—cloudy. |\n| 12 | 29.195 | 41.2 | 29.530 | 42.0 | 37 | 37.2 | 39.0 | 35.2 | 39.0 | NNW | Cloudy and foggy. |\n| 13 | 29.959 | 38.8 | 29.795 | 40.6 | 34 | 33.9 | 39.1 | 30.5 | 48.8 | SW | Night. Rain—foggy. Violent wind during the night. |\n| 14 | 29.428 | 42.8 | 29.379 | 45.9 | 44 | 48.8 | 45.9 | 39.4 | 48.8 | SW var. | Fine—cloudy. Strong wind. |\n| 15 | 30.149 | 39.6 | 30.234 | 41.9 | 27 | 34.0 | 37.8 | 32.6 | 41.0 | NW | Fine—hazy. |\n| 16 | 30.050 | 40.7 | 29.969 | 42.7 | 40 | 41.2 | 46.2 | 36.2 | 47.6 | SW | Overcast and foggy. |\n| 17 | 30.227 | 41.8 | 30.255 | 42.9 | 37 | 37.2 | 39.3 | 36.8 | 39.3 | N var. | Cloudy—faint haze. |\n| 18 | 30.251 | 40.6 | 30.254 | 41.1 | 34 | 34.3 | 36.5 | 34.2 | 36.5 | NNE | Cloudy and foggy. |\n| 19 | 30.266 | 36.0 | 30.290 | 37.7 | 28 | 33.0 | 34.2 | 31.6 | 34.2 | NE | Fine—cloudy. Strong fog A.M. |\n| 20 | 30.204 | 35.6 | 30.110 | 36.4 | 27 | 30.0 | 32.8 | 27.8 | 32.8 | N | Fine—light clouds. |\n| 21 | 29.833 | 33.2 | 29.743 | 33.0 | 25 | 27.0 | 26.8 | 26.1 | 29.5 | NE | A.M. Snow, in small flakes. P.M. Fine—light stretching clouds. |\n| 22 | 29.469 | 33.0 | 29.600 | 32.4 | 28 | 28.0 | 27.1 | 25.2 | 27.1 | NE | A.M. Snow, in small flakes. P.M. Fine—light stretching clouds. |\n| 23 | 29.597 | 29.2 | 29.543 | 31.9 | 26 | 27.0 | 28.9 | 21.2 | 28.9 | NNW | Cloudy. Light fall of snow. |\n| 24 | 29.531 | 31.2 | 29.578 | 33.6 | 27 | 28.8 | 32.5 | 26.5 | 32.5 | SW | Dark—strong fog. |\n| 25 | 29.628 | 32.0 | 29.625 | 33.2 | 29 | 29.0 | 30.9 | 27.0 | 30.9 | NE | A.M. Snow—foggy. P.M. Fine—nearly cloudless. |\n| 26 | 29.667 | 29.7 | 29.681 | 33.0 | 24 | 24.3 | 32.2 | 18.0 | 32.2 | W | A.M. Overcast. P.M. Nearly cloudless. Light haze. |\n| 27 | 30.099 | 33.2 | 30.199 | 34.5 | 25 | 32.0 | 32.8 | 30.1 | 32.8 | N | Cloudy and overcast. |\n| 28 | 30.165 | 31.8 | 30.032 | 35.5 | 26 | 29.5 | 37.0 | 24.0 | 42.0 | SSW | Cloudy and overcast. |\n| 29 | 29.903 | 37.5 | 29.848 | 40.8 | 42 | 42.0 | 44.0 | 36.8 | 44.0 | SW | Cloudy and overcast. |\n| 30 | 29.777 | 39.4 | 29.725 | 40.8 | 37 | 36.9 | 40.0 | 34.5 | 40.0 | S | Fine and clear—light clouds. |\n| 31 | 29.697 | 40.6 | 29.681 | 42.9 | 39 | 40.0 | 44.0 | 36.6 | 44.0 | S | Overcast and foggy. |\n\nMean Mean Mean Mean Mean Mean Mean Mean Sum\n\n| 29.847 | 37.3 | 29.824 | 38.6 | 26.3 | 34.3 | 37.0 | 31.2 | 39.2 | 1,080 |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ................. { 9 A.M. 3 P.M. }\n{ 29.837 29.811 }\n\n### OBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge........................ = 83 feet 2½ in.\n................................................................. above the mean level of the Sea (presumed about) .......... = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House........................ = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit's Scale.\n\nThe Barometer is divided into inches and decimals.\n| 1827. February | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer | Rain, in inches, Read off 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|---------------|-----------------|-----------------|----------------------------------------|---------------------|-------------------------------|-----------------------------|---------|\n| | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. | Self-registering. | Highest. | Lowest. | SE Overcast and foggy. |\n| 1 | 29.752 | 43.0 | 29.741 | 44.0 | 40 | 39.9 | 42.5 | 39.9 | ESE A.M. Fine—light haze. P.M. Cloudy—brisk wind. |\n| 2 | 29.913 | 41.2 | 29.964 | 42.1 | 27 | 35.0 | 38.1 | 35.0 | NNWvar Fine—cloudy—brisk wind. |\n| 3 | 30.376 | 36.2 | 30.476 | 37.5 | 18 | 31.0 | 33.7 | 28.6 | N Overcast and hazy. |\n| 4 | 30.558 | 35.0 | 30.537 | 37.8 | 31 | 33.2 | 36.8 | 28.3 | NE A.M. Cloudy. P.M. Fine—light clouds. |\n| 5 | 30.496 | 36.5 | 30.429 | 38.2 | 33 | 35.0 | 35.9 | 32.8 | N Cloudy and hazy. |\n| 6 | 30.285 | 35.0 | 30.265 | 38.1 | 32 | 32.5 | 39.9 | 27.9 | N Fine and clear—nearly cloudless. |\n| 7 | 30.415 | 37.8 | 30.402 | 39.7 | 34 | 36.4 | 39.2 | 33.0 | NNE Very fine—nearly cloudless. |\n| 8 | 30.450 | 35.8 | 30.449 | 37.2 | 32 | 32.3 | 34.3 | 29.3 | NNE Fine and cloudless—light haze. |\n| 9 | 30.365 | 34.0 | 30.303 | 36.1 | 25 | 30.2 | 33.8 | 28.2 | NNE Fine—light haze. |\n| 10 | 30.164 | 33.3 | 30.057 | 36.2 | 29 | 29.4 | 34.8 | 27.7 | NE Overcast and foggy. |\n| 11 | 29.819 | 34.4 | 29.768 | 35.0 | 30 | 30.1 | 32.3 | 30.0 | N Cloudy and foggy. |\n| 12 | 29.861 | 35.2 | 29.883 | 38.0 | 35 | 35.2 | 38.0 | 30.9 | NNW Fine—light clouds and haze—brisk wind. |\n| 13 | 30.082 | 35.8 | 30.151 | 38.7 | 32 | 33.1 | 37.6 | 31.2 | SW Cloudy and hazy. |\n| 14 | 30.055 | 35.3 | 29.978 | 38.2 | 31 | 31.2 | 39.0 | 27.2 | N Fine—cloudy—brisk wind. |\n| 15 | 29.857 | 37.1 | 29.947 | 38.8 | 35 | 35.1 | 33.9 | 31.1 | ESE A.M. Very strong fog. P.M. Cloudless—brisk wind. |\n| 16 | 30.136 | 33.3 | 30.101 | 35.1 | 8 | 28.8 | 29.9 | 23.2 | SSW Cloudy. |\n| 17 | 29.939 | 30.4 | 29.888 | 33.2 | 21 | 21.1 | 30.2 | 19.0 | ESE A.M. Very strong fog. P.M. Cloudless—brisk wind. |\n| 18 | 30.045 | 29.9 | 30.045 | 31.9 | 22 | 25.3 | 28.0 | 19.6 | ESE A.M. Very strong fog. P.M. Cloudless—brisk wind. |\n| 19 | 29.921 | 29.1 | 29.792 | 31.1 | 25 | 25.1 | 27.3 | 23.1 | ENE Cloudy and hazy. |\n| 20 | 29.674 | 27.2 | 29.645 | 30.8 | 22 | 25.2 | 30.5 | 20.9 | N Overcast and hazy. |\n| 21 | 29.634 | 33.2 | 29.650 | 35.0 | 32 | 35.0 | 36.8 | 30.0 | N Cloudy and hazy. |\n| 22 | 29.849 | 34.3 | 29.944 | 36.8 | 32 | 32.5 | 37.0 | 31.3 | WSW Fine—cloudy—hazy. |\n| 23 | 30.058 | 32.2 | 29.998 | 37.3 | 26 | 26.0 | 38.2 | 23.2 | WSW Fine—cloudy—hazy. |\n| 24 | 29.937 | 35.0 | 29.942 | 37.3 | 23 | 34.2 | 39.0 | 28.3 | WSW Cloudy. |\n| 25 | 30.159 | 33.6 | 30.126 | 37.3 | 26 | 28.0 | 39.6 | 24.8 | N A.M. Very strong fog. P.M. Cloudless—brisk wind. |\n| 26 | 29.833 | 36.8 | 29.744 | 40.1 | 36 | 37.9 | 46.3 | 32.9 | SSW Cloudy—brisk wind. Strong gales in the night. |\n| 27 | 29.479 | 44.8 | 29.526 | 47.8 | 47 | 50.1 | 52.5 | 46.0 | SE A.M. Fine and clear. P.M. Cloudy—brisk wind. |\n| 28 | 29.687 | 44.2 | 29.508 | 46.0 | 38 | 38.3 | 48.9 | 37.7 | ESE Overcast and foggy. Rain. Strong boisterous wind in the night. |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr.\n\n\\[ \\{ \\text{9 A.M.} \\quad 30.028 \\quad 35.3 \\quad 30.009 \\quad 37.7 \\quad 29.3 \\quad 32.2 \\quad 36.9 \\quad 29.3 \\quad 37.5 \\quad \\text{3 P.M.} \\quad 30.023 \\quad 29.998 \\} \\]\n\n**OBSERVANDA.**\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 feet 2½ in.\n\nabove the mean level of the Sea (presumed about) = 95 feet.\n\nThe external Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit's Scale.\n\nThe Barometer is divided into inches and decimals.\n## METEOROLOGICAL JOURNAL FOR MARCH, 1827.\n\n| 1827. March | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M., in degrees of Fahr. | External Thermometer | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|-------------|-----------------|-----------------|----------------------------------------|---------------------|-----------------------------------|-------------------------------|---------|\n| | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. Self-registering. | Lowest. Highest. | |\n| 1 | 29.317 | 48.9 | 29.438 | 51.2 | 49 | 50.0 | SSW |\n| | | | | | | 51.8 | Fine—cloudy—strong wind. |\n| 2 | 29.284 | 49.8 | 29.364 | 49.1 | 47 | 47.0 | SSW |\n| | | | | | | 41.7 | A.M. Heavy rain and boisterous wind. |\n| | | | | | | 43.8 | P.M. Fine—light clouds. |\n| 3 | 29.465 | 47.0 | 29.295 | 48.3 | 43 | 43.0 | S var. |\n| | | | | | | 46.8 | Cloudy—brisk wind. |\n| 4 | 28.817 | 48.5 | 28.782 | 50.2 | 46 | 46.2 | S var. |\n| | | | | | | 47.8 | Fine—cloudy. Strong wind. |\n| 5 | 29.741 | 43.2 | 29.641 | 46.8 | 30 | 36.9 | WSW |\n| | | | | | | 43.9 | A.M. Cloudy—light wind. P.M. Fine. |\n| | | | | | | 32.0 | P.M. Fine and clear. Violent gales, with showers during the day. |\n| 6 | 29.069 | 47.0 | 28.957 | 49.2 | 46 | 48.1 | WSW |\n| | | | | | | 47.5 | SW |\n| | | | | | | 42.8 | Fine and cloudless—brisk wind. |\n| 7 | 29.553 | 45.9 | 29.367 | 49.5 | 41 | 41.2 | SSW var. |\n| | | | | | | 48.5 | Cloudy—violent wind. |\n| 8 | 28.856 | 48.5 | 28.923 | 50.8 | 46 | 46.9 | NNE |\n| | | | | | | 48.9 | Lightly overcast. |\n| 9 | 29.407 | 44.6 | 29.419 | 46.2 | 32 | 37.5 | N |\n| | | | | | | 41.0 | Cloudless and very fine—light breeze. |\n| 10 | 29.728 | 40.4 | 29.830 | 44.0 | 33 | 36.8 | WSW |\n| | | | | | | 43.0 | Cloudy—brisk wind. |\n| 11 | 29.527 | 45.2 | 29.577 | 48.7 | 47 | 50.0 | N |\n| | | | | | | 53.8 | Fine—light haze. |\n| 12 | 29.676 | 49.2 | 29.872 | 51.6 | 47 | 48.3 | SW |\n| | | | | | | 54.0 | Dissolving clouds—slight fog—light breeze. |\n| 13 | 29.859 | 49.8 | 29.868 | 52.9 | 48 | 49.3 | SW |\n| | | | | | | 54.8 | Fine and clear. |\n| 14 | 29.762 | 50.9 | 29.874 | 52.8 | 40 | 47.3 | WNW |\n| | | | | | | 49.9 | A.M. Overcast and foggy. P.M. Fine and clear—light wind. |\n| 15 | 29.627 | 48.9 | 29.623 | 50.0 | 42 | 44.8 | WSW |\n| | | | | | | 45.6 | NW |\n| | | | | | | 41.4 | Fine—lightly overcast. |\n| 16 | 30.147 | 45.5 | 30.119 | 48.4 | 36 | 39.8 | SSW |\n| | | | | | | 46.9 | Overcast and foggy. |\n| 17 | 29.367 | 48.4 | 29.408 | 49.2 | 44 | 46.2 | WSW |\n| | | | | | | 45.9 | A.M. Cloudy. P.M. Very fine—light haze. |\n| 18 | 30.025 | 42.3 | 30.086 | 44.8 | 32 | 38.7 | SW |\n| | | | | | | 43.0 | Fine—nearly cloudless—light wind. |\n| 19 | 30.330 | 41.9 | 30.306 | 45.2 | 30 | 38.7 | W |\n| | | | | | | 44.0 | Fine—cloudy. |\n| 20 | 30.236 | 45.0 | 30.187 | 47.9 | 46 | 47.0 | WSW |\n| | | | | | | 52.6 | Cloudy. |\n| 21 | 30.079 | 48.5 | 30.053 | 51.2 | 47 | 50.0 | NNW |\n| | | | | | | 52.5 | Fine—lightly overcast. |\n| 22 | 30.083 | 50.4 | 30.045 | 53.5 | 48 | 49.2 | SW |\n| | | | | | | 57.2 | A.M. Cloudy. P.M. Very fine—light haze. |\n| 23 | 30.106 | 52.6 | 30.074 | 55.0 | 50 | 52.2 | WSW |\n| | | | | | | 57.2 | Fine—nearly cloudless—light wind. |\n| 24 | 30.081 | 53.2 | 30.084 | 56.7 | 50 | 50.3 | W |\n| | | | | | | 55.2 | Fine—cloudy. |\n| 25 | 29.977 | 52.7 | 30.015 | 54.2 | 49 | 49.5 | WSW |\n| | | | | | | 50.2 | Cloudy. |\n| 26 | 30.284 | 46.1 | 30.247 | 49.2 | 30 | 39.7 | NNW |\n| | | | | | | 46.8 | Fine—lightly overcast. |\n| 27 | 29.971 | 47.6 | 29.851 | 50.3 | 40 | 44.9 | SSW |\n| | | | | | | 49.3 | Cloudy—light showers. |\n| 28 | 29.658 | 50.2 | 29.455 | 53.2 | 38 | 48.5 | SW |\n| | | | | | | 52.2 | Fine—cloudy. Violent gales. |\n| 29 | 29.245 | 49.7 | 29.282 | 51.8 | 38 | 44.8 | W var. |\n| | | | | | | 47.2 | A.M. Fine and clear. P.M. Cloudy—brisk wind—showery. |\n| 30 | 29.401 | 49.5 | 29.438 | 49.8 | 39 | 42.0 | WSW |\n| | | | | | | 45.4 | Overcast—brisk wind—showery. |\n| 31 | 30.141 | 48.5 | 30.139 | 50.4 | 30 | 47.1 | SW |\n| | | | | | | 49.6 | Fine—light clouds. |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ................. { 9 A.M. 3 P.M. }\n{ 29,668 29,655 }\n\n### OBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge ...................... = 83 feet 2½ in.\n.......................................................... above the mean level of the Sea (presumed about) ........... = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House ....................... = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit's Scale.\n\nThe Barometer is divided into inches and decimals.\n| 1827. April | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|------------|-----------------|-----------------|----------------------------------------|----------------------|----------------------------------|-----------------------------|----------|\n| | Barom. | Attach. Ther. | Barom. | Attach. Ther. | Fahrenheit. | Self-registering. | Highest. | Lowest. | Highest. | Rain. | Direction. | Remarks |\n| ☀ 1 | 30.169 | 47.0 | 30.118 | 48.9 | 41 | 43.6 | 46.3 | 40.0 | 48.0 | W | Overcast—light fog. Showery. |\n| ☉ 2 | 30.120 | 48.2 | 30.086 | 51.3 | 47 | 48.2 | 55.8 | 44.7 | 55.9 | WSW | Cloudy and foggy. |\n| ★ 3 | 30.086 | 51.2 | 30.058 | 53.6 | 51 | 51.2 | 54.9 | 47.8 | 54.9 | W | Overcast and foggy. |\n| ☮ 4 | 30.121 | 52.1 | 30.102 | 55.6 | 50 | 50.8 | 56.9 | 45.2 | 57.3 | SW | Cloudy—light breeze. |\n| ☣ 5 | 30.109 | 54.8 | 30.069 | 57.5 | 49 | 54.2 | 60.9 | 48.1 | 61.4 | S | Very fine and clear—light breeze. |\n| ☹ 6 | 29.953 | 58.8 | 29.982 | 61.1 | 53 | 60.0 | 64.6 | 51.1 | 65.0 | SSE | Fine—fleecy clouds—light breeze. |\n| ☼ 7 | 30.136 | 57.5 | 30.154 | 59.2 | 43 | 51.8 | 59.8 | 49.6 | 60.4 | WNW | Fine—light clouds. |\n| ☺ 8 | 30.358 | 57.2 | 30.309 | 59.3 | 46 | 53.2 | 57.1 | 47.8 | 57.8 | ESE | Fine—cloudy. |\n| ☯ 9 | 30.106 | 56.8 | 29.990 | 59.7 | 48 | 53.0 | 61.2 | 46.9 | 61.9 | SSW | Very fine and clear—thin clouds—light wind. |\n| ☢ 10 | 29.872 | 55.2 | 29.858 | 58.5 | 48 | 51.6 | 56.2 | 46.2 | 56.7 | WSW | Cloudy. |\n| ☠ 11 | 29.896 | 54.8 | 29.887 | 58.2 | 51 | 52.5 | 55.9 | 46.2 | 56.4 | SE | Cloudy. |\n| ☣ 12 | 29.797 | 55.2 | 29.788 | 56.0 | 49 | 51.2 | 51.9 | 45.5 | 52.3 | S | Cloudy—showery. |\n| ☹ 13 | 30.111 | 53.9 | 30.128 | 56.6 | 47 | 47.2 | 56.7 | 41.1 | 56.8 | NW | Fine—cloudy. |\n| ☽ 14 | 30.210 | 53.0 | 30.143 | 56.1 | 40 | 49.1 | 57.0 | 41.8 | 57.3 | NNE | Very fine—light clouds. |\n| ☢ 15 | 30.063 | 54.2 | 30.051 | 57.0 | 50 | 51.0 | 54.7 | 46.3 | 55.0 | NNW | Cloudy. |\n| ☠ 16 | 30.065 | 53.7 | 30.055 | 56.4 | 40 | 48.8 | 52.0 | 45.8 | 52.4 | N | Cloudy. |\n| ☣ 17 | 30.045 | 51.8 | 30.007 | 54.8 | 45 | 46.3 | 50.8 | 41.2 | 51.4 | N | Lowering. At 3h 30m P.M. heavy rain, with hail. |\n| ☹ 18 | 29.913 | 50.0 | 29.849 | 51.6 | 44 | 44.4 | 46.8 | 41.2 | 47.4 | N | Overcast and foggy—showery. |\n| ☽ 19 | 29.750 | 50.8 | 29.700 | 53.5 | 47 | 47.4 | 52.0 | 44.3 | 52.2 | E | Cloudy. |\n| ☢ 20 | 29.655 | 48.6 | 29.613 | 51.8 | 42 | 42.0 | 49.3 | 39.8 | 49.8 | ESE | Fine—cloudy. |\n| ☠ 21 | 29.518 | 48.9 | 29.532 | 50.8 | 46 | 46.8 | 49.2 | 43.7 | 49.5 | 0.031 | ENE | Overcast—showery. |\n| ☣ 22 | 29.681 | 47.8 | 29.720 | 48.2 | 43 | 43.8 | 44.0 | 41.4 | 44.0 | N var. | Overcast—brisk wind. |\n| ☹ 23 | 29.721 | 45.2 | 29.684 | 46.2 | 33 | 42.0 | 43.7 | 37.2 | 43.7 | NNE | Lowering. |\n| ☽ 24 | 29.523 | 44.2 | 29.566 | 47.5 | 39 | 41.2 | 44.0 | 35.1 | 45.8 | S var. | Cloudy—showery. |\n| ☢ 25 | 29.775 | 48.2 | 29.843 | 48.8 | 30 | 45.2 | 51.0 | 33.5 | 51.0 | WSW | Fine and clear—light clouds. |\n| ☠ 26 | 30.128 | 47.0 | 30.187 | 49.6 | 35 | 44.0 | 52.5 | 35.5 | 53.1 | SW | Fine and clear—light clouds. |\n| ☣ 27 | 30.324 | 51.8 | 30.265 | 52.9 | 36 | 51.8 | 56.6 | 32.8 | 57.0 | SSE | Fine—light clouds. |\n| ☹ 28 | 30.118 | 53.8 | 30.031 | 55.6 | 48 | 54.9 | 62.0 | 41.8 | 63.9 | SE | Clear and cloudless. |\n| ☽ 29 | 30.030 | 58.5 | 30.027 | 60.4 | 55 | 63.5 | 65.2 | 46.7 | 67.6 | E | Clear and cloudless. |\n| ☢ 30 | 30.079 | 62.1 | 30.052 | 64.3 | 55 | 65.5 | 72.0 | 51.2 | 73.5 | NW | Fine and clear—light clouds. |\n\nMean Mean Mean Mean Mean Mean Mean Mean Sum\n\n29.981 52.4 29.962 54.7 45.0 49.9 54.7 43.3 55.3 0.041\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr.\n\n\\[ \\{ \\text{9 A.M.} \\quad \\text{3 P.M.} \\} \\]\n\n\\[ \\{ 29.933 \\quad 29.908 \\} \\]\n\n**OBSERVANDA.**\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 feet 2½ in.\n\nabove the mean level of the Sea (presumed about) = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit's Scale.\n\nThe Barometer is divided into inches and decimals.\n## METEOROLOGICAL JOURNAL FOR MAY, 1827.\n\n| 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|-----------------|-----------------|----------------------------------------|----------------------|-----------------------------------|-------------------------------|---------|\n| Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. Self-registering. | Lowest. Highest. | |\n| 1 | 30.053 | 63.1 | 30.033 | 66.5 | 56 | 62.1 | 69.2 | 56.1 | 69.8 | WSW | Fine—cloudy. |\n| 2 | 30.036 | 59.8 | 29.988 | 61.8 | 51 | 51.2 | 60.8 | 50.0 | 62.6 | SE | Fine—light wind. |\n| 3 | 29.953 | 64.0 | 29.913 | 65.5 | 56 | 60.7 | 67.9 | 51.0 | 68.8 | WSW | Fine—light clouds. |\n| 4 | 29.906 | 63.0 | 29.884 | 65.1 | 54 | 57.0 | 64.2 | 50.7 | 64.9 | NW | Cloudy. |\n| 5 | 29.678 | 60.0 | 29.625 | 61.2 | 55 | 55.9 | 56.0 | 51.8 | 56.0 | S | Lowering—rain. |\n| 6 | 29.302 | 59.3 | 29.172 | 60.0 | 54 | 54.5 | 55.9 | 53.0 | 56.8 | SSW | Overcast—showery. |\n| 7 | 29.667 | 56.2 | 29.689 | 58.1 | 41 | 49.3 | 53.2 | 44.9 | 53.4 | N | Cloudy. |\n| 8 | 29.869 | 53.8 | 29.869 | 52.8 | 38 | 47.8 | 48.6 | 37.8 | 49.4 | N | Cloudy. |\n| 9 | 29.829 | 49.8 | 29.792 | 52.8 | 45 | 46.2 | 50.7 | 40.2 | 52.8 | 0.050 | ENE | Overcast—light fog. |\n| 10 | 29.797 | 55.6 | 29.763 | 56.8 | 44 | 52.0 | 54.8 | 42.2 | 55.2 | E | Cloudy. |\n| 11 | 29.802 | 55.3 | 29.847 | 57.0 | 41 | 52.9 | 56.8 | 41.1 | 57.8 | NNE | Lightly overcast. |\n| 12 | 30.126 | 57.6 | 30.095 | 56.8 | 44 | 51.2 | 53.2 | 40.7 | 53.3 | NE | Fine—nearly cloudless. |\n| 13 | 29.982 | 56.2 | 29.882 | 56.3 | 40 | 53.0 | 58.0 | 39.2 | 58.3 | E | Fine—nearly cloudless—light wind. |\n| 14 | 29.832 | 50.7 | 29.812 | 53.6 | 50 | 49.9 | 50.0 | 45.8 | 49.9 | N | Overcast and foggy. |\n| 15 | 29.776 | 52.7 | 29.758 | 56.2 | 49 | 49.7 | 57.6 | 47.1 | 60.0 | WSW | Fine—cloudy. |\n| 16 | 29.580 | 57.3 | 29.458 | 60.8 | 53 | 59.5 | 61.3 | 46.1 | 61.8 | ENE | Lowering—unsteady wind. |\n| 17 | 29.594 | 61.8 | 29.611 | 61.4 | 55 | 60.2 | 63.5 | 49.1 | 64.8 | ESE | Lowering. At 6h 30m P.M. thunder and lightning, with heavy rain and violent gusts of wind. Fine—cloudy. |\n| 18 | 29.658 | 60.9 | 29.751 | 63.7 | 57 | 57.8 | 65.6 | 53.9 | 66.2 | SSW | Fine—cloudy. |\n| 19 | 29.940 | 63.2 | 29.989 | 64.2 | 55 | 62.1 | 65.6 | 54.8 | 67.6 | NW | Fine—cloudy. |\n| 20 | 30.089 | 66.2 | 30.051 | 64.2 | 57 | 65.7 | 68.8 | 52.4 | 69.1 | SSW | Fine—light clouds. |\n| 21 | 30.157 | 66.2 | 30.154 | 67.8 | 57 | 64.9 | 71.3 | 51.8 | 73.8 | E | Fine—nearly cloudless. |\n| 22 | 30.137 | 63.8 | 30.081 | 65.0 | 60 | 61.7 | 62.1 | 53.2 | 64.2 | 0.062 | WSW | Lowering. |\n| 23 | 30.022 | 65.2 | 29.885 | 66.1 | 58 | 62.2 | 65.3 | 54.1 | 66.1 | A.M. Fine. P.M. Overcast. |\n| 24 | 29.429 | 61.5 | 29.371 | 62.2 | 54 | 57.5 | 56.8 | 53.4 | 59.2 | W | Cloudy—light haze. |\n| 25 | 29.375 | 59.6 | 29.371 | 62.5 | 52 | 52.4 | 55.9 | 45.1 | 59.2 | WSW | Cloudy—showery. |\n| 26 | 29.466 | 62.1 | 29.486 | 63.2 | 53 | 55.0 | 60.0 | 48.4 | 62.6 | SSW | Cloudy. |\n| 27 | 29.611 | 63.9 | 29.626 | 64.8 | 47 | 61.2 | 63.2 | 49.4 | 65.2 | SW | Fine—brisk wind. Showery. |\n| 28 | 29.731 | 61.7 | 29.806 | 63.0 | 58 | 60.9 | 63.7 | 54.5 | 64.3 | SSW | Cloudy. Heavy showers, and strong boisterous wind. |\n| 29 | 29.794 | 63.8 | 29.806 | 65.0 | 58 | 62.5 | 60.7 | 56.2 | 64.3 | 0.156 | SSW | Fine—light breeze. |\n| 30 | 29.918 | 66.3 | 29.879 | 67.0 | 56 | 63.5 | 66.8 | 52.1 | 67.4 | SSW | Fine and clear—light clouds. Strong wind. |\n| 31 | 29.726 | 67.6 | 29.745 | 65.8 | 58 | 64.3 | 64.7 | 57.1 | 65.5 | SW | |\n\nMean Mean Mean Mean Mean Mean Mean Mean Sum\n\n| 29.801 | 60.3 | 29.779 | 61.5 | 51.8 | 56.9 | 60.4 | 49.1 | 61.6 | 0.268 |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ............... { 9 A.M. 3 P.M. } { 29.732 29.708 }\n\n### OBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge ......................... = 83 feet 2½ in.\n\n.......................................................... above the mean level of the Sea (presumed about) .............. = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House ......................... = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit’s Scale.\n\nThe Barometer is divided into inches and decimals.\n## METEOROLOGICAL JOURNAL FOR JUNE, 1827.\n\n| 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M., Degrees of Fahr. | External Thermometer. | Rain, in Inches Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|-----------------|-----------------|--------------------------------------|-----------------------|----------------------------------|-------------------------------|---------|\n| Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. | Self-registering. | Lowest. | Highest. | SSW | A.M. Rain—boisterous wind. P.M. Fine—cloudy. |\n| | | | | | | | | SE | Overcast—showery. |\n| | | | | | | | | NNE | Fine and clear—cloudy. |\n| | | | | | | | | NW | Fine and clear—light clouds. |\n| | | | | | | | | SSW | Overcast—showery—brisk wind. |\n| | | | | | | | | NNW | Fine—cloudy—brisk wind. |\n| | | | | | | | | NNE | Fine—cloudy. |\n| | | | | | | | | NE | Fine and clear—brisk wind. |\n| | | | | | | | | NNE | Fine and clear—gentle wind. |\n| | | | | | | | | NNE | Clear and cloudless—brisk wind. |\n| | | | | | | | | ESE | Fine—cloudy—light breeze. |\n| | | | | | | | | E | Cloudy—light breeze. |\n| | | | | | | | | SSW | Overcast—gentle wind. |\n| | | | | | | | | WSW | Fine—cloudy. |\n| | | | | | | | | SW | Dark and overcast. |\n| | | | | | | | | SW | A.M. Fine—nearly cloudless. P.M. Cloudy. |\n| | | | | | | | | NW | Fine—light clouds. |\n| | | | | | | | | SSW | Very clear and fine—light clouds—brisk wind. |\n| | | | | | | | | W | Fine—cloudy—light wind. |\n| | | | | | | | | W | Fine—cloudy—light wind. |\n| | | | | | | | | N | Fine—light clouds. |\n| | | | | | | | | E | Lowering. |\n| | | | | | | | | WSW | Fine—light clouds. |\n| | | | | | | | | SW | Overcast—dissolving clouds—brisk wind. |\n| | | | | | | | | SW | Lowering—brisk wind. Rain. |\n| | | | | | | | | SW | A.M. Cloudy. P.M. Fine. |\n| | | | | | | | | SW | A.M. Cloudy. P.M. Fine and clear—brisk wind. |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ............... {9 A.M. 3 P.M.} {29.889 29.857}\n\n### OBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge ...................... = 83 feet 2½ in. ................................................................. above the mean level of the Sea (presumed about) .......... = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House .................... = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit’s Scale.\n\nThe Barometer is divided into inches and decimals.\n## METEOROLOGICAL JOURNAL FOR JULY, 1827.\n\n| 1827. July | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|------------|-----------------|-----------------|----------------------------------------|----------------------|-----------------------------------|-----------------------------|---------|\n| | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. Self-registering. | Lowest. Highest. | |\n| 1 | 29.779 | 65.6 | 29.780 | 68.0 | 61 | 63.0 | 68.9 | 58.8 | 70.2 | S | A.M. Lowering. P.M. Fine.—Strong breeze. |\n| 2 | 29.900 | 64.6 | 29.823 | 67.8 | 60 | 60.2 | 69.6 | 59.0 | 70.8 | 0.016 ESE | A.M. Rain. P.M. Fine—cloudy—light breeze. |\n| 3 | 29.896 | 71.2 | 29.964 | 69.6 | 56 | 66.2 | 70.7 | 55.9 | 71.6 | WSW | Fine and clear—light clouds—brisk wind. |\n| 4 | 30.248 | 72.2 | 30.212 | 70.0 | 52 | 68.3 | 71.8 | 52.6 | 73.2 | 0.016 WSW | Clear and cloudless—showery. |\n| 5 | 30.295 | 67.2 | 30.373 | 70.2 | 60 | 66.6 | 69.8 | 61.2 | 71.0 | NNE | Fine and clear—cloudy—brisk wind. |\n| 6 | 30.498 | 68.2 | 30.448 | 68.6 | 57 | 63.4 | 71.7 | 52.8 | 73.0 | S | Cloudless—light haze. |\n| 7 | 30.449 | 72.5 | 30.413 | 74.2 | 63 | 72.0 | 76.8 | 59.0 | 77.8 | SW | Fine—cloudy. |\n| 8 | 30.442 | 74.3 | 30.406 | 74.7 | 58 | 70.3 | 76.9 | 60.8 | 77.0 | NNW | Fine and clear—cloudy—light wind. |\n| 9 | 30.350 | 76.8 | 30.258 | 75.1 | 59 | 73.3 | 80.0 | 61.8 | 80.9 | W | Clear and cloudless—light breeze. |\n| 10 | 30.206 | 75.9 | 30.095 | 74.7 | 59 | 70.2 | 76.0 | 58.2 | 76.0 | WSW | Clear and cloudless—light breeze. |\n| 11 | 30.106 | 65.8 | 30.145 | 70.0 | 53 | 63.7 | 68.8 | 58.6 | 70.5 | NNE | Fine—broken clouds—light haze. |\n| 12 | 30.215 | 67.8 | 30.211 | 70.2 | 55 | 63.4 | 72.3 | 54.2 | 73.0 | NNE | A.M. Fine—strong haze. P.M. Clear—light clouds. |\n| 13 | 30.266 | 73.0 | 30.232 | 71.2 | 54 | 69.0 | 71.7 | 57.4 | 72.3 | ESE | Clear and cloudless. |\n| 14 | 30.225 | 70.2 | 30.157 | 70.1 | 51 | 67.3 | 70.2 | 52.6 | 72.2 | ESE | Clear and cloudless. |\n| 15 | 30.095 | 66.8 | 30.061 | 69.5 | 56 | 66.7 | 71.9 | 51.8 | 73.6 | ENE | Fine—thin clouds. |\n| 16 | 30.087 | 68.3 | 30.079 | 69.3 | 55 | 66.8 | 68.8 | 55.8 | 73.0 | E | Fine—thin elevated clouds—light wind. |\n| 17 | 30.100 | 70.7 | 30.058 | 70.7 | 59 | 67.1 | 75.0 | 55.2 | 75.7 | ESE | Fine and clear—light breeze. |\n| 18 | 30.021 | 70.6 | 30.039 | 72.1 | 63 | 69.3 | 70.7 | 59.7 | 73.8 | SSW | Fine—cloudy—brisk wind. |\n| 19 | 30.036 | 65.0 | 29.967 | 68.1 | 58 | 63.8 | 64.0 | 57.3 | 67.2 | 0.009 SW | Lowering—strong breeze. Even dark and cloudy, with rain and strong wind. |\n| 20 | 29.790 | 66.9 | 29.800 | 69.8 | 57 | 63.1 | 69.4 | 60.8 | 71.5 | 0.054 WNW v. | Fine and clear—cloudy—gentle wind. |\n| 21 | 29.978 | 66.7 | 30.023 | 68.9 | 53 | 65.6 | 68.2 | 53.0 | 70.3 | WSW | Fine—cloudy. |\n| 22 | 30.066 | 67.3 | 30.024 | 66.3 | 57 | 63.2 | 61.4 | 53.0 | 64.5 | 0.054 S | Lowering—light breeze. Heavy rain at 10h. 25m. A.M. |\n| 23 | 30.041 | 66.2 | 30.073 | 69.2 | 60 | 60.6 | 70.3 | 60.2 | 74.0 | SSE | Lowering. |\n| 24 | 30.123 | 68.2 | 30.094 | 71.2 | 66 | 67.6 | 70.8 | 63.2 | 72.8 | WSW | Lowering. |\n| 25 | 30.096 | 68.2 | 30.028 | 70.7 | 66 | 66.2 | 69.8 | 62.3 | 70.7 | SW | A.M. Dark and lowering—showery. |\n| 26 | 30.170 | 68.9 | 30.088 | 70.0 | 56 | 66.6 | 68.7 | 54.5 | 73.2 | WSW | P.M. Fine and clear. |\n| 27 | 30.188 | 69.4 | 30.196 | 70.9 | 56 | 65.7 | 73.8 | 60.4 | 75.8 | NNW | A.M. Fine and lowering—brisk wind—showery. |\n| 28 | 30.251 | 71.7 | 30.232 | 74.0 | 68 | 72.1 | 78.2 | 67.0 | 78.2 | WSW | Fine—overspread with high fleecy clouds—light wind. |\n| 29 | 30.247 | 76.3 | 30.135 | 75.7 | 68 | 74.5 | 80.0 | 62.2 | 81.1 | W | Clear and cloudless—light breeze. |\n| 30 | 29.844 | 75.3 | 29.979 | 74.8 | 64 | 73.7 | 71.9 | 67.8 | 77.8 | WSW | Clear and cloudless—light breeze. |\n| 31 | 30.284 | 70.9 | 30.278 | 72.3 | 54 | 66.6 | 71.8 | 55.6 | 73.5 | WNW | Fine—cloudy. |\n| Mean | Mean | Mean | Mean | Mean | Mean | Mean | Mean | Mean | Sum | | 9 A.M. 3 P.M. |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ................. = 30.042 30.021\n\n### OBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge...................... = 83 feet 2½ in.\n\n.......................................................... above the mean level of the Sea (presumed about) ............. = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House....................... = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit’s Scale.\n\nThe Barometer is divided into inches and decimals.\n\nMDCCXXVIII.\n| 1827. August | 9 o'clock, A.M. | 3 o'clock P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|-------------|----------------|----------------|----------------------------------------|----------------------|----------------------------------|--------------------------|---------|\n| | Barom. Attach. Therm. | Barom. Attach. Therm. | Fahrenheit. | Self-registering. Lowest. Highest. | | | |\n| 1 | 30.196 71.8 | 30.195 72.3 | 50 67.7 76.0 58.4 77.6 | SW Clear and cloudless—light wind. |\n| 2 | 29.950 71.4 | 29.841 74.3 | 61 71.3 77.7 58.3 80.2 | ESE Fine—lightly overcast—light breeze. |\n| 3 | 29.801 73.8 | 29.748 72.7 | 60 71.8 71.6 60.0 75.0 | SSW Fine—light clouds—strong breeze. |\n| 4 | 29.701 70.5 | 29.807 72.2 | 64 67.7 71.2 61.9 72.8 | SSW A.M. Lowering—heavy showers—brisk wind. P.M. Fine. |\n| 5 | 30.088 66.7 | 30.152 71.5 | 53 63.7 69.3 60.6 72.7 0.014 NW Fine—cloudy. |\n| 6 | 30.319 61.7 | 30.345 67.3 | 59 60.7 66.1 55.2 66.8 NE Lowering—light breeze. |\n| 7 | 30.347 66.0 | 30.259 67.9 | 53 64.9 67.2 53.2 71.3 ESE Fine—light clouds. |\n| 8 | 30.166 62.0 | 30.100 66.8 | 54 62.5 70.0 51.2 70.8 ENE Fine—light cloud—light haze. |\n| 9 | 30.045 65.3 | 29.992 67.7 | 58 63.9 70.0 54.5 70.6 NNE A.M. Lowering—heavy shower. P.M. Fine—light wind. |\n| 10 | 29.691 67.3 | 29.600 70.2 | 63 64.2 71.7 61.2 73.2 SSW Fine and clear. Thunder with rain at noon. |\n| 11 | 29.619 65.0 | 29.587 66.8 | 50 63.3 65.7 54.2 69.4 0.019 WSW Cloudy—gentle wind. |\n| 12 | 29.718 60.3 | 29.808 65.7 | 56 59.7 65.7 52.3 66.7 NW A.M. Fine—light clouds. P.M. Lowering—showery. |\n| 13 | 29.932 62.5 | 29.927 65.8 | 46 61.7 65.0 49.6 66.4 WSW A.M. Overcast. P.M. Fine—cloudy thin diffused clouds. |\n| 14 | 29.710 65.9 | 29.645 68.6 | 65 64.9 68.9 59.8 70.2 0.072 SSW Brisk wind.—A.M. Fine and clear. P.M. Lowering—thunder and lightning with rain. |\n| 15 | 29.393 68.2 | 29.453 69.5 | 65 64.8 69.5 62.9 71.8 SW Fine—light wind. In the evening lightning with rain. |\n| 16 | 29.442 63.8 | 29.496 68.1 | 63 62.7 65.7 57.4 68.5 N Fine—cloudy. Shower at 1h20m. P.M. |\n| 17 | 29.791 65.2 | 29.857 68.7 | 64 64.8 68.3 55.7 70.2 0.014 ESE Fine—light clouds—brisk wind. |\n| 18 | 30.022 63.3 | 30.039 68.0 | 63 62.8 65.6 56.9 68.8 NNE A.M. Dull and cloudy. P.M. Fine—thin diffused clouds. |\n| 19 | 30.026 63.2 | 30.032 66.1 | 55 60.3 64.7 54.2 67.7 NNE Dull and cloudy—light wind. |\n| 20 | 30.069 61.2 | 30.058 65.1 | 57 59.2 62.8 54.2 65.6 NNW A.M. Lowering. P.M. Fine—showery. |\n| 21 | 30.083 61.9 | 30.095 66.6 | 62 62.6 67.1 51.8 69.8 N Cloudy. |\n| 22 | 30.194 60.6 | 30.211 62.7 | 54 58.3 61.3 54.9 62.0 0.191 N Clear and cloudless—brisk wind. |\n| 23 | 30.363 60.1 | 30.363 65.2 | 53 58.4 69.4 54.9 69.6 N A.M. Fine. P.M. Overcast. |\n| 24 | 30.285 64.8 | 30.241 66.0 | 58 63.7 63.3 56.4 66.9 NNW Cloudy—brisk wind. |\n| 25 | 30.157 61.2 | 30.178 61.7 | 48 57.3 57.7 52.6 60.6 NNW Fine—cloudy—brisk wind. |\n| 26 | 30.181 57.2 | 30.182 60.2 | 52 56.3 59.2 50.0 59.7 NNW Fine and cloudless—faint haze. |\n| 27 | 30.322 57.9 | 30.313 62.7 | 55 56.8 65.2 48.3 66.2 0.106 NNW Cloudy. |\n| 28 | 30.317 62.6 | 30.310 65.2 | 58 60.6 64.8 56.8 67.3 NW Fine—light clouds. |\n| 29 | 30.435 57.8 | 30.401 62.3 | 44 56.3 65.0 48.8 66.2 NE Cloudy and foggy—light showers. |\n| 30 | 30.305 58.6 | 30.221 63.1 | 57 58.5 62.8 50.5 63.8 0.100 W Cloudy—light breeze. |\n| 31 | 30.327 58.8 | 30.342 63.9 | 56 57.8 63.9 53.7 65.0 N |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. = 29.954\n\nOBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 feet 2½ in. above the mean level of the Sea (presumed about) = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit's Scale.\n\nThe Barometer is divided into inches and decimals.\n## METEOROLOGICAL JOURNAL FOR SEPTEMBER, 1827.\n\n| 1827. | 9 o'clock, A.M. | 3 o'clock P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches, Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|-------|-----------------|----------------|----------------------------------------|----------------------|----------------------------------|-------------------------------|---------|\n| Septemb. | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit | Self-registering. | Lowest. | Highest. | 9 A.M. | 3 P.M. | NNE | Very fine and clear—light clouds. |\n| R 1 | 30.395 | 60.2 | 30.360 | 64.8 | 60 | 61.0 | 66.0 | 54.3 | 67.9 | 0.225 | NNE | Dull—cloudy. |\n| O 2 | 30.369 | 59.4 | 30.326 | 65.3 | 59 | 60.2 | 67.4 | 52.2 | 69.6 | 0.214 | NNE | Fine—light clouds. |\n| D 3 | 30.349 | 60.1 | 30.321 | 65.2 | 52 | 58.4 | 67.7 | 52.4 | 69.2 | 0.054 | NNE | Dull and cloudy—light wind. |\n| Z 4 | 30.345 | 58.6 | 30.304 | 61.5 | 50 | 56.8 | 60.2 | 55.0 | 60.8 | N | A.M. Cloudy. P.M. Fine—light clouds—gentle wind. |\n| O 5 | 30.282 | 60.3 | 30.251 | 65.8 | 57 | 59.5 | 66.8 | 54.5 | 68.0 | NNE | Lowering. |\n| Z 6 | 30.321 | 61.3 | 30.304 | 64.9 | 50 | 59.2 | 63.3 | 50.1 | 64.3 | NNE | Fine—cloudy and hazy—light breeze. |\n| O 7 | 30.316 | 60.7 | 30.242 | 63.2 | 56 | 58.3 | 61.2 | 49.8 | 63.0 | N | Overcast. |\n| H 8 | 30.286 | 60.7 | 30.281 | 63.5 | 55 | 58.8 | 62.0 | 55.3 | 63.2 | SE | Overcast and showery. Strong unsteady wind. |\n| O 9 | 30.031 | 63.7 | 29.975 | 64.9 | 57 | 62.8 | 63.7 | 56.5 | 65.6 | N | Lowering—light fog. Showers and brisk wind. |\n| D 10 | 29.929 | 62.3 | 29.906 | 65.0 | 60 | 59.9 | 65.0 | 58.2 | 65.7 | 0.030 | WSW | Cloudy—light wind. |\n| Z 11 | 29.856 | 66.2 | 29.775 | 67.4 | 64 | 65.7 | 68.3 | 62.7 | 69.5 | 0.128 | S | A.M. Frequent showers & boisterous wind. P.M. Fine & clear—brisk wind. |\n| O 12 | 29.761 | 65.8 | 29.793 | 66.7 | 61 | 61.2 | 60.8 | 58.9 | 66.2 | SW | Fine—cloudy—light fog. |\n| Z 13 | 29.951 | 63.2 | 30.059 | 65.2 | 57 | 59.0 | 61.8 | 53.6 | 64.2 | 0.039 | NW | Fine—cloudy—light wind. |\n| O 14 | 30.253 | 61.6 | 30.221 | 65.2 | 56 | 57.5 | 64.9 | 49.8 | 67.3 | WSW | A.M. Fine and clear. P.M. Overcast. |\n| H 15 | 30.303 | 64.3 | 30.305 | 67.2 | 62 | 63.0 | 67.5 | 59.4 | 69.0 | 0.017 | NNW | Dark and cloudy. |\n| O 16 | 30.351 | 66.2 | 30.385 | 68.3 | 65 | 65.5 | 67.3 | 61.9 | 70.0 | N | Fine—light clouds. |\n| D 17 | 30.370 | 65.0 | 30.329 | 67.8 | 59 | 61.2 | 66.8 | 58.5 | 67.8 | NNE | Dull—light clouds. Thunder and lightning with rain, in the evening. |\n| Z 18 | 30.291 | 64.3 | 30.229 | 67.2 | 61 | 61.0 | 66.6 | 57.0 | 67.8 | ESE | Clear and nearly cloudless—brisk wind. |\n| O 19 | 30.196 | 60.8 | 30.194 | 62.3 | 47 | 55.3 | 57.8 | 48.8 | 59.3 | NNW | Cloudy and foggy. |\n| Z 20 | 29.780 | 56.9 | 29.841 | 58.2 | 50 | 49.8 | 54.8 | 47.7 | 57.2 | NNE | A.M. Overcast and foggy. P.M. Fine. |\n| O 21 | 29.835 | 57.8 | 29.718 | 62.1 | 55 | 57.2 | 62.8 | 48.5 | 63.8 | SSW | Clear—heavy clouds. |\n| H 22 | 29.588 | 59.4 | 29.499 | 62.2 | 54 | 56.0 | 59.0 | 53.6 | 61.5 | SSW | Lowering—heavy rain. |\n| O 23 | 29.544 | 57.3 | 29.588 | 60.2 | 53 | 55.3 | 57.7 | 48.8 | 60.3 | SSE | Fine and clear—light clouds—showery. |\n| D 24 | 29.701 | 57.7 | 29.726 | 60.8 | 54 | 56.8 | 58.3 | 50.2 | 62.8 | SSE | Fine and nearly cloudless—brisk wind. |\n| Z 25 | 29.720 | 57.8 | 29.696 | 61.6 | 55 | 55.2 | 61.1 | 51.2 | 62.8 | SSW | Showery. |\n| O 26 | 29.642 | 59.9 | 29.595 | 63.1 | 58 | 59.8 | 64.2 | 53.2 | 67.3 | ESE | Cloudy and showery. |\n| Z 27 | 29.629 | 61.7 | 29.707 | 65.3 | 60 | 60.6 | 65.8 | 58.2 | 66.4 | SE | A.M. Overcast and foggy. P.M. Fine. |\n| O 28 | 29.748 | 62.5 | 29.757 | 64.6 | 60 | 60.3 | 62.3 | 55.9 | 63.8 | SE | Clear—overspread with high fleecy clouds. |\n| H 29 | 29.675 | 60.7 | 29.672 | 61.7 | 58 | 57.9 | 60.0 | 54.2 | 60.5 | ESE | Fine—overspread with high fleecy clouds. |\n\n### Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr.\n\n| 9 A.M. | 3 P.M. |\n|--------|--------|\n| 30.021 | 61.3 |\n| 30.003 | 64.2 |\n| 56.8 | 59.1 |\n| 63.2 | 54.2 |\n| 65.0 | 0.831 |\n\n### OBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 feet 2½ in.\n\nabove the mean level of the Sea (presumed about) = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit's Scale.\n\nThe Barometer is divided into inches and decimals.\n| 1827. October | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer. | Rain, in inches, Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|--------------|-----------------|-----------------|----------------------------------------|----------------------|----------------------------------|-----------------------------|---------|\n| | Barom. | Attach. Therm. | Barom. | Attach. Therm. | Fahrenheit. | Self-registering. | Lowest. Highest. | |\n| D 1 | 29.820 | 61.0 | 29.817 | 63.6 | 58 | 58.4 | 60.8 | 55.7 | 63.5 | E | Dark and overcast—showery. |\n| D 2 | 29.939 | 60.3 | 29.973 | 62.8 | 55 | 55.6 | 61.8 | 53.0 | 62.2 | E | Fine and nearly cloudless—light fog. |\n| D 3 | 30.252 | 59.8 | 30.306 | 62.8 | 56 | 56.1 | 58.3 | 52.0 | 59.6 | NNE | Overcast—light fog. |\n| D 4 | 30.412 | 57.6 | 30.398 | 61.4 | 53 | 52.8 | 60.9 | 48.8 | 61.3 | WSW | { A.M. Strong haze. P.M. Fine—light clouds. }\n| O 5 | 30.410 | 57.8 | 30.339 | 61.3 | 55 | 54.8 | 62.3 | 50.8 | 62.8 | NNE | Fine—light clouds—hazy. |\n| H 6 | 30.194 | 54.7 | 30.103 | 60.7 | 54 | 53.8 | 61.0 | 46.8 | 61.4 | NNE | Fine—cloudy. |\n| O 7 | 29.983 | 55.3 | 29.908 | 58.8 | 49 | 49.0 | 58.8 | 46.6 | 59.2 | NE | { A.M. Strong fog. P.M. Fine—light thin clouds. }\n| D 8 | 29.663 | 54.9 | 29.535 | 59.1 | 54 | 55.2 | 59.6 | 47.7 | 60.8 | ESE | { Fine—fleecy clouds. Showers in the evening. }\n| D 9 | 29.295 | 58.2 | 29.261 | 60.9 | 58 | 57.7 | 59.0 | 52.7 | 60.6 | SE | Cloudy—strong wind. Showery. |\n| D 10 | 29.407 | 57.3 | 29.297 | 58.0 | 53 | 53.6 | 53.3 | 50.8 | 66.7 | 0.177 | SW | Overcast and foggy—showery. |\n| D 11 | 29.258 | 56.3 | 29.253 | 57.1 | 52 | 52.0 | 51.3 | 47.5 | 54.2 | SSW | { At 0h. 40m. A.M. Thunder and lightning, with heavy rain and strong boisterous wind. }\n| O 12 | 29.385 | 54.8 | 29.472 | 57.5 | 52 | 52.8 | 55.7 | 46.8 | 57.1 | SW | Fine—cloudy. |\n| H 13 | 29.510 | 49.3 | 29.465 | 53.3 | 45 | 45.0 | 51.6 | 40.8 | 51.7 | SW | { A.M. Strong fog. P.M. Fine—light clouds. }\n| O 14 | 29.764 | 51.2 | 29.806 | 55.0 | 50 | 50.0 | 55.4 | 44.1 | 55.8 | W | Fine—cloudy. |\n| D 15 | 29.944 | 54.2 | 29.935 | 57.0 | 54 | 54.5 | 60.2 | 49.8 | 61.3 | SW | Fine and clear—light clouds. |\n| D 16 | 29.968 | 58.4 | 29.968 | 59.8 | 58 | 59.2 | 59.6 | 54.8 | 61.0 | SSW | Lowering—brisk wind. |\n| D 17 | 29.901 | 57.2 | 29.852 | 59.2 | 56 | 55.7 | 58.0 | 50.7 | 58.8 | SSE | Clear and cloudless. |\n| D 18 | 29.777 | 54.1 | 29.758 | 58.6 | 54 | 54.2 | 60.1 | 48.2 | 60.3 | E | { A.M. Strong haze. P.M. Fine—light diffused clouds. }\n| D 19 | 29.791 | 57.3 | 29.788 | 60.5 | 55 | 55.8 | 61.3 | 53.9 | 62.5 | NE | { A.M. Dark—very strong fog—rain. }\n| H 20 | 29.766 | 58.3 | 29.726 | 60.7 | 56 | 55.9 | 59.6 | 54.4 | 60.1 | SSE | Showery—light fog. |\n| O 21 | 29.607 | 58.4 | 29.554 | 60.4 | 55 | 55.6 | 58.7 | 54.9 | 60.2 | W | Dark and overcast—haze. |\n| D 22 | 29.337 | 58.4 | 29.226 | 59.8 | 55 | 55.3 | 57.4 | 52.2 | 59.1 | SE | Fine and clear—light dissolving clouds. |\n| D 23 | 29.186 | 58.7 | 29.255 | 59.3 | 54 | 57.4 | 57.1 | 53.4 | 58.6 | 0.182 | SSE | Showers in the evening. |\n| D 24 | 29.658 | 54.9 | 29.815 | 58.0 | 52 | 52.7 | 57.3 | 50.4 | 57.3 | NE | Cloudy—heavy showers and brisk wind. |\n| D 25 | 30.082 | 56.6 | 30.086 | 58.5 | 55 | 55.0 | 57.4 | 51.7 | 57.8 | SE | { A.M. Strong fog. P.M. Fine. Showery. }\n| O 26 | 30.133 | 58.0 | 30.059 | 60.2 | 55 | 55.6 | 59.2 | 53.2 | 59.7 | 0.216 | SE | Overcast and foggy—small rain. |\n| H 27 | 29.744 | 56.0 | 29.620 | 59.1 | 54 | 53.8 | 58.8 | 51.7 | 59.0 | ESE | Fine—hazy. |\n| O 28 | 29.566 | 57.0 | 29.476 | 51.6 | 51 | 51.6 | 45.9 | 45.9 | 51.6 | N | { A.M. Fine—strong haze. P.M. Cloudy—light showers. }\n| D 29 | 29.903 | 43.3 | 29.975 | 49.7 | 39 | 42.2 | 49.2 | 37.9 | 49.2 | NNE | Overcast—frequent showers and strong unsteady wind. |\n| D 30 | 29.959 | 43.7 | 29.833 | 49.3 | 42 | 42.3 | 48.8 | 36.4 | 48.8 | WSW | A.M. Cloudless. P.M. Overcast—hazy. |\n| O 31 | 29.745 | 50.0 | 29.697 | 52.6 | 49 | 49.4 | 51.6 | 41.7 | 51.6 | NNW | Cloudy and hazy. |\n| Mean | 29.779 | 55.6 | 29.760 | 58.3 | 52.8 | 53.3 | 57.1 | 49.2 | 58.5 | Sum | 2,267 |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr.\n\n9 A.M. 29.722\n3 P.M. 29.696\n\nOBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge......................... = 83 feet 2½ in.\n\n.......................................................... above the mean level of the Sea (presumed about) ............... = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House ......................... = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit's Scale.\n\nThe Barometer is divided into inches and decimals.\n## METEOROLOGICAL JOURNAL FOR NOVEMBER, 1827.\n\n| 1827. Novemb. | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M., degrees of Fahr. | External Thermometer. | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks. |\n|---------------|-----------------|-----------------|-------------------------------------|----------------------|-----------------------------------|-----------------------------|----------|\n| | Barom. | Attach. Therm. | Barom. | Fahrenheit. | Self-registering. | Lowest. Highest. | |\n| y 1 | 29.944 | 42.7 | 30.026 | 46.6 | 33 | 39.7 | 45.0 | 36.0 | 49.8 | NNW | A.M. Fine and cloudless. P.M. Overcast and hazy. |\n| y 2 | 29.817 | 49.2 | 29.988 | 50.8 | 48 | 50.0 | 50.3 | 39.0 | 50.6 | NNE | Dull and foggy—strong wind. |\n| o 3 | 30.132 | 44.7 | 30.100 | 48.0 | 40 | 42.8 | 48.6 | 37.0 | 48.8 | WSW | Dull—light clouds—foggy. |\n| o 4 | 30.199 | 48.8 | 30.141 | 53.0 | 49 | 48.8 | 53.4 | 42.3 | 53.7 | W | Fine—light clouds—brisk wind. |\n| o 5 | 30.362 | 50.4 | 30.392 | 55.0 | 50 | 49.9 | 55.3 | 46.2 | 55.8 | WSW | Fine—hazy. |\n| o 6 | 30.327 | 52.9 | 30.281 | 55.0 | 52 | 52.8 | 54.7 | 49.6 | 54.8 | W | Dull—hazy. |\n| o 7 | 30.205 | 52.2 | 30.180 | 51.4 | 50 | 49.8 | 48.7 | 49.0 | 49.8 | N | Dark—foggy. |\n| y 8 | 30.109 | 48.1 | 30.088 | 49.4 | 43 | 46.2 | 46.8 | 43.7 | 48.3 | 0.025 | E | Unusually dark—strong haze. |\n| y 9 | 29.872 | 50.6 | 29.796 | 52.6 | 49 | 49.3 | 52.2 | 45.2 | 52.2 | SSE | Lightly overcast—foggy. |\n| h 10 | 29.955 | 52.2 | 29.994 | 53.8 | 50 | 50.6 | 52.7 | 48.0 | 52.8 | NW | Overcast and foggy—showery. |\n| o 11 | 29.963 | 52.3 | 29.944 | 55.0 | 50 | 50.9 | 54.5 | 48.0 | 55.4 | 0.030 | W | Fine and cloudless—light fog. |\n| o 12 | 30.155 | 48.7 | 30.173 | 51.3 | 43 | 43.2 | 49.6 | 41.9 | 54.2 | WSW | A.M. White fog. P.M. Fine—hazy. |\n| o 13 | 30.173 | 51.8 | 30.154 | 55.6 | 54 | 54.2 | 58.2 | 42.3 | 58.3 | NNW | Overcast and foggy. |\n| o 14 | 30.123 | 52.9 | 30.036 | 51.1 | 48 | 47.6 | 44.7 | 46.4 | 47.6 | 0.067 | ESE | A.M. Overcast and foggy. P.M. Fine and nearly cloudless. |\n| y 15 | 29.779 | 48.2 | 29.657 | 49.8 | 45 | 45.0 | 46.8 | 37.8 | 46.8 | 0.186 | S | Overcast and foggy. Showery. |\n| y 16 | 29.458 | 50.3 | 29.509 | 50.9 | 47 | 46.9 | 47.7 | 41.5 | 47.7 | 0.041 | ESE | Lowering—light fog. |\n| h 17 | 29.818 | 46.2 | 29.840 | 50.7 | 45 | 45.2 | 50.0 | 40.7 | 50.0 | 0.055 | E | Strong fog. |\n| o 18 | 30.074 | 46.8 | 30.089 | 49.3 | 45 | 45.2 | 49.4 | 41.0 | 49.4 | NNE | Strong fog. |\n| o 19 | 30.260 | 50.7 | 30.225 | 51.3 | 50 | 49.6 | 50.2 | 44.6 | 50.2 | NNE | Strong fog. |\n| o 20 | 30.185 | 50.2 | 30.088 | 50.0 | 46 | 45.8 | 46.4 | 45.3 | 48.3 | WSW | Overcast and foggy. |\n| o 21 | 30.211 | 46.8 | 30.159 | 44.3 | 40 | 40.8 | 39.5 | 31.0 | 41.3 | NNE | Hazy—light clouds. |\n| y 22 | 29.892 | 36.8 | 29.749 | 39.7 | 23 | 30.2 | 36.7 | 27.6 | 36.7 | NW | Overcast and hazy—Light fall of snow at 4 P.M. |\n| y 23 | 29.666 | 33.1 | 29.574 | 36.7 | 25 | 29.0 | 33.7 | 23.8 | 33.7 | WSW | Overcast and hazy. |\n| h 24 | 29.787 | 34.2 | 29.893 | 36.8 | 26 | 31.0 | 34.6 | 28.1 | 34.6 | N | Fine and cloudless—hazy. |\n| o 25 | 29.950 | 35.0 | 29.944 | 37.6 | 34 | 34.3 | 37.2 | 27.2 | 37.8 | SW | Overcast and foggy. Fall of snow early A.M. |\n| o 26 | 30.285 | 38.9 | 30.333 | 40.8 | 39 | 38.7 | 42.7 | 33.6 | 42.7 | 0.133 | N | Strong fog. |\n| o 27 | 30.354 | 39.6 | 30.277 | 42.5 | 35 | 34.8 | 43.8 | 33.1 | 43.8 | S | A.M. Dense fog. P.M. Fine and cloudless. |\n| o 28 | 30.051 | 41.2 | 29.917 | 43.7 | 36 | 38.7 | 44.6 | 33.9 | 44.6 | SSE | A.M. Fine and cloudless. P.M. Overcast—hazy. |\n| y 29 | 29.363 | 43.7 | 29.443 | 46.0 | 43 | 43.9 | 47.7 | 37.8 | 48.3 | 0.319 | NNW | At 13 A.M. violent wind, continuing 4 hours—Strong fog. P.M. Fine. |\n| y 30 | 29.512 | 45.6 | 29.494 | 47.7 | 46 | 45.7 | 48.6 | 42.3 | 52.2 | WSW | Foggy—showery. |\n\nMean Mean Mean Mean Mean Mean Mean Mean Sum\n\n| Mean | Mean | Mean | Mean | Mean | Mean | Mean | Mean | 0.977 |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. ............... 29.966 29.945\n\n### OBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge ......................... = 83 feet 2½ in.\n\n.......................................................... above the mean level of the Sea (presumed about) ............... = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House ......................... = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit’s Scale.\n\nThe Barometer is divided into inches and decimals.\n| Decemb. | 9 o'clock, A.M. | 3 o'clock, P.M. | Dew Point at 9 A.M. in degrees of Fahr. | External Thermometer | Rain, in inches. Read off at 9 A.M. | Direction of the Wind at 9 A.M. | Remarks |\n|---------|-----------------|-----------------|----------------------------------------|----------------------|----------------------------------|-------------------------------|---------|\n| 1827 | Barom. | Attach. Ther. | Barom. | Attach. Ther. | Fahrenheit. | Self-registering. | Direction of the Wind at 9 A.M. | Remarks |\n| | | | | | 9 A.M. | 3 P.M. | | |\n| | | | | | Lowest. | Highest. | | |\n| 1 | 29.064 | 49.2 | 28.974 | 51.2 | 49 | 49.4 | 51.0 | 45.2 | 51.8 | 0.110 | SW | Clear—broken clouds—strong wind. |\n| 2 | 29.136 | 48.5 | 29.186 | 48.8 | 45 | 45.3 | 46.3 | 44.3 | 46.3 | 0.018 | W | Overcast and foggy—showery. |\n| 3 | 29.700 | 48.3 | 29.775 | 49.0 | 45 | 46.5 | 45.7 | 43.6 | 50.2 | 0.114 | N | Overcast and foggy. |\n| 4 | 29.798 | 49.2 | 29.847 | 50.4 | 50 | 50.8 | 53.7 | 43.3 | 53.7 | 0.103 | WSW | Overcast and foggy—showery. |\n| 5 | 29.981 | 51.0 | 29.947 | 53.2 | 51 | 50.8 | 54.7 | 48.6 | 54.7 | 0.016 | WSW | Cloudy—light haze. The clouds forming a peculiar arch of uniform breadth—from NE to SW. P.M. Fine—light clouds. [Cloudless.] |\n| 6 | 29.845 | 52.1 | 29.998 | 51.6 | 42 | 47.2 | 45.8 | 46.2 | 47.3 | 0.019 | NW | Lightly overcast—hazy. |\n| 7 | 30.278 | 46.5 | 30.172 | 48.7 | 37 | 37.7 | 44.8 | 35.2 | 49.6 | WSW | Lowering—foggy. |\n| 8 | 29.871 | 49.3 | 29.923 | 49.9 | 47 | 46.9 | 46.7 | 36.7 | 46.9 | 0.047 | W | Lowering—showery—strong wind. |\n| 9 | 29.907 | 44.8 | 29.782 | 46.8 | 40 | 40.0 | 46.7 | 35.3 | 51.2 | 0.008 | S | A.M. Cloudless. P.M. Lowering—showery—strong wind. |\n| 10 | 29.609 | 49.6 | 29.507 | 51.7 | 51 | 51.2 | 52.2 | 39.2 | 52.6 | 0.005 | S | A.M. Dark—very strong fog. P.M. Showery. |\n| 11 | 29.506 | 50.3 | 29.402 | 51.7 | 46 | 46.1 | 50.6 | 44.2 | 50.7 | 0.005 | SSE | Fine and cloudless. |\n| 12 | 29.425 | 48.7 | 29.369 | 48.8 | 42 | 42.3 | 44.7 | 41.2 | 45.7 | 0.611 | SW | Lowering—strong wind—showery. |\n| 13 | 29.492 | 48.5 | 29.607 | 49.3 | 42 | 42.2 | 44.2 | 41.2 | 45.4 | 0.119 | W | Lowering—strong wind—showery. |\n| 14 | 29.461 | 48.7 | 29.336 | 49.2 | 46 | 46.0 | 48.2 | 38.8 | 50.2 | SSE | Lowering—strong wind—showery. |\n| 15 | 29.698 | 48.7 | 29.644 | 50.3 | 47 | 46.9 | 50.8 | 42.4 | 53.1 | 0.139 | SSW | Lowering—strong wind—showery. |\n| 16 | 29.715 | 50.6 | 29.794 | 51.7 | 45 | 45.0 | 46.7 | 44.2 | 50.5 | 0.250 | WSW | Fine and cloudless—light haze. |\n| 17 | 30.217 | 46.2 | 30.153 | 48.3 | 39 | 39.0 | 45.2 | 37.2 | 50.7 | 0.010 | WSW | Overcast—showery—brisk wind. |\n| 18 | 29.814 | 50.2 | 29.762 | 51.3 | 51 | 51.2 | 52.3 | 38.2 | 52.8 | 0.053 | S | Lowering—strong boisterous wind—showery. |\n| 19 | 29.594 | 52.9 | 29.564 | 54.0 | 53 | 53.0 | 53.2 | 51.0 | 54.2 | 0.205 | S var. | A.M. Cloudless. P.M. Overcast. |\n| 20 | 29.560 | 52.3 | 29.590 | 52.7 | 45 | 46.2 | 46.8 | 45.2 | 47.7 | 0.194 | SW | A.M. Cloudless. P.M. Overcast. |\n| 21 | 29.700 | 48.7 | 29.615 | 50.0 | 41 | 40.6 | 45.7 | 38.9 | 48.7 | SW | A.M. Cloudless. P.M. Overcast. |\n| 22 | 29.412 | 49.8 | 29.506 | 51.2 | 48 | 49.0 | 50.8 | 39.9 | 50.8 | 0.028 | SSW | Lowering—strong boisterous wind—showery. |\n| 23 | 29.849 | 49.2 | 30.073 | 49.7 | 45 | 46.3 | 46.0 | 45.1 | 51.3 | 0.228 | N var. | A.M. Cloudy—brisk wind. P.M. Cloudless. |\n| 24 | 29.830 | 49.8 | 29.756 | 51.8 | 51 | 51.7 | 54.8 | 41.7 | 54.8 | 0.008 | SW | Dull—light clouds. |\n| 25 | 30.356 | 47.9 | 30.401 | 49.4 | 42 | 43.4 | 47.2 | 40.1 | 47.2 | 0.005 | WSW | Lightly overcast. |\n| 26 | 30.479 | 48.8 | 30.466 | 50.3 | 47 | 47.8 | 48.9 | 42.6 | 49.4 | SSW | A.M. Foggy. P.M. Fine—light clouds. |\n| 27 | 30.435 | 48.7 | 30.431 | 50.3 | 47 | 46.7 | 50.3 | 43.3 | 50.3 | SSW | Fine—lightly overcast. |\n| 28 | 30.696 | 46.8 | 30.657 | 47.0 | 39 | 39.6 | 41.8 | 38.2 | 41.8 | N | Strong fog. |\n| 29 | 30.556 | 43.9 | 30.477 | 44.2 | 35 | 35.3 | 37.1 | 33.9 | 37.1 | WSW | Strong fog. |\n| 30 | 30.361 | 41.6 | 30.288 | 42.8 | 36 | 36.7 | 41.0 | 30.8 | 41.0 | ESE | Lightly overcast and foggy. |\n| 31 | 29.925 | 42.1 | 29.715 | 43.3 | 39 | 38.8 | 43.8 | 35.8 | 46.2 | SSE | A.M. Fine. P.M. Overcast—showery. |\n\nMonthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr.\n\n\\[ \\text{Mean} = 29.847 \\]\n\\[ \\text{Mean} = 48.5 \\]\n\\[ \\text{Mean} = 29.829 \\]\n\\[ \\text{Mean} = 49.6 \\]\n\\[ \\text{Mean} = 44.6 \\]\n\\[ \\text{Mean} = 45.1 \\]\n\\[ \\text{Mean} = 47.7 \\]\n\\[ \\text{Mean} = 41.0 \\]\n\\[ \\text{Mean} = 49.1 \\]\n\\[ \\text{Sum} = 2,290 \\]\n\nOBSERVANDA.\n\nHeight of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 feet 2½ in.\n\nAbove the mean level of the Sea (presumed about) = 95 feet.\n\nThe External Thermometer is 2 feet higher than the Barometer Cistern.\n\nHeight of the Receiver of the Rain Gauge above the Court of Somerset House = 79 feet 0 in.\n\nThe hours of observation are of Mean Time, the day beginning at Midnight.\n\nThe Thermometers are graduated by Fahrenheit's Scale.\n\nThe Barometer is divided into inches and decimals.", "source": "olmocr", "added": "2026-01-12", "created": "2026-01-12", "metadata": { "Source-File": "/home/jic823/projects/def-jic823/royalsociety/pdfs/107845.pdf", "olmocr-version": "0.3.4", "pdf-total-pages": 14, "total-input-tokens": 24666, "total-output-tokens": 33427, "total-fallback-pages": 0 }, "attributes": { "pdf_page_numbers": [ [ 0, 0, 1 ], [ 0, 154, 2 ], [ 154, 8949, 3 ], [ 8949, 16915, 4 ], [ 16915, 31976, 5 ], [ 31976, 40718, 6 ], [ 40718, 49699, 7 ], [ 49699, 56869, 8 ], [ 56869, 66398, 9 ], [ 66398, 71336, 10 ], [ 71336, 75969, 11 ], [ 75969, 85899, 12 ], [ 85899, 96030, 13 ], [ 96030, 106851, 14 ] ], "primary_language": [ "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en", "en" ], "is_rotation_valid": [ true, true, true, true, true, true, true, true, true, true, true, true, true, true ], "rotation_correction": [ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ], "is_table": [ false, false, true, true, true, true, true, true, true, true, true, true, true, true ], "is_diagram": [ false, false, false, false, false, false, false, false, false, false, false, false, false, false ] }, "jstor_metadata": { "identifier": "jstor-107845", "title": "Meteorological Journal, Kept by the Assistant Secretary at the Apartments of the Royal Society, by Order of the President and Council", "authors": null, "year": 1828, "volume": "118", "journal": "Philosophical Transactions of the Royal Society of London", "page_count": 14, "jstor_url": "https://www.jstor.org/stable/107845" } }