# Meteorological Journal, Kept by the Assistant Secretary at the Apartments of the Royal Society, by Order of the President and Council **Author(s):** Anonymous **Year:** 1827 **Journal:** Philosophical Transactions of the Royal Society of London **Volume:** 117 **Pages:** 17 pages **Identifier:** jstor-107885 **JSTOR URL:** --- METEOROLOGICAL JOURNAL, KEPT BY THE ASSISTANT SECRETARY AT THE APARTMENTS OF THE ROYAL SOCIETY, BY ORDER OF THE PRESIDENT AND COUNCIL. MDCCCXXVII. ## METEOROLOGICAL JOURNAL for January, 1826. | 1826 January | Time. | Barometer corrected. | Therm. without. | Degree of Moisture by Daniell's Hygrom. | Sixe's Therm. | Rain. | Winds. | Weather. | |--------------|-------|----------------------|-----------------|----------------------------------------|---------------|-------|--------|----------| | | H. M. | Inches. | | | | | | | | 1 | 9 | 29,742 | 36 | 936 | 31 | 0.070 | E | Rain. | | | 4 | 29,695 | 40 | 857 | 41 | | E | Cloudy. | | 2 | 9 | 29,798 | 39 | 794 | 38 | | E | Cloudy. | | | 3 | 29,768 | 39 | | 41 | | E | Fine. | | 3 | 9 | 29,817 | 33 | 893 | 31 | | E | Fine. | | | 9 | 29,835 | 36 | 806 | 38 | | E | Fine. | | 4 | 9 | 29,877 | 35 | 867 | 33 | | E | Hazy. | | | 3 | 29,840 | 36 | 871 | 36 | | E | Cloudy. | | 5 | 9 | 29,844 | 35 | 900 | 35 | | E | Cloudy and dark. | | | 3 | 29,805 | 35 | 933 | 36 | | E | Rain. | | 6 | 9 | 29,712 | 36 | 903 | 35 | | E | Rain. | | 7 | 9 | 29,778 | 36 | 968 | 35 | 0.055 | E | Cloudy and hazy. | | | 3 | 29,779 | 35 | 967 | 36 | | E | Cloudy. | | 8 | 9 | 29,892 | 33 | 786 | 31½ | | E | Fine. | | | 3 | 29,948 | 31 | No deposition at 15° | 33 | | E | Cloudy. | | 9 | 9 | 29,987 | 28 | 612 | 25 | | E | Fine. | | | 3 | 29,963 | 28 | 569 | 30 | | E | Fine. | | 10 | 9 | 29,797 | 24 | 77½ | 33½ | | NE | Hazy. | | | 4 | 29,676 | 30 | 760 | 32 | | NNW | Fine. | | 11 | 9 | 29,665 | 30 | 910 | 29 | | N | Snow. | | | 4 | 29,704 | 33 | 786 | 32 | | N | Fine. | | 12 | 9 | 29,755 | 24 | 799 | 21 | | NNW | Dark and foggy. | | | 3 | 29,773 | 31 | 702 | 32½ | | W | Hazy. | | 13 | 8 | 29,906 | 21 | 788 | 20 | | W | Hazy. | | 14 | | | | | | | | | | 15 | 10 | 30,216 | 24 | 890 | 19½ | | N | Hazy. | | | 4 | 30,282 | 28 | 745 | 29 | | NE | Hazy. | | 16 | 9 | 30,439 | 17 | 772 | 16 | | E | Thick fog. | | | 5 | 30,529 | 28 | 936 | 28 | | E | Cloudy and hazy. | ## METEOROLOGICAL JOURNAL for January, 1826. | 1826 January | Time | Barometer corrected. | Therm. without. | Degree of Moisture by Daniell's Hygrom. | Sixe's Therm. | Rain. | Winds. | Weather. | |--------------|------|---------------------|-----------------|----------------------------------------|---------------|-------|--------|----------| | | H. M.| Inches. | | | | | | | | δ 17 | 9 o | 30,552 | 24 | 963 | 22 | E | I | Fine, rather hazy. | | | 4 o | 30,542 | 31 | 846 | 32 | SE | I | Fine. | | χ 18 | 9 o | 30,403 | 30 | 904 | 28 | S | I | Cloudy. | | | 3 o | 30,341 | 36 | 734 | 37 | S | I | Fine. | | η 19 | 9 30| 30,078 | 41 | 849 | 34 | N | I | Cloudy and hazy. | | | 3 o | 30,030 | 42 | 842 | 43 | N | I | Fine. | | ρ 20 | 9 o | 30,349 | 37 | 916 | 36 | N | I | Cloudy and dark fog. | | | 3 o | 30,144 | 40 | 886 | 41 | WNW | I | Cloudy. | | η 21 | 9 o | 30,146 | 37 | 812 | 36 | SW | I | Cloudy and hazy. | | | 3 o | 30,095 | 40 | 943 | 41½ | W | I | Rain. | | ο 22 | 9 30| 30,164 | 34 | 966 | 34 | — | I | Thick fog. | | | 3 o | 30,159 | 39 | 941 | 39 | WNW | I | Cloudy. | | ι 23 | 9 o | 30,146 | 32 | 963 | 31 | S | I | Cloudy. | | δ 24 | 9 o | 30,169 | 40 | 943 | 40 | W | I | Cloudy. | | | 3 o | 30,303 | 35 | 900 | 35 | NS | I | Thick fog. | | ρ 25 | 9 o | 30,295 | 35 | 900 | 34 | E | I | Thick fog. | | | 3 o | 30,258 | 34 | 966 | 35 | E | I | Cloudy. | | η 26 | 9 o | 30,270 | 35 | 867 | 34 | E | I | Cloudy. | | | 3 o | 30,228 | 36 | 839 | 37 | E | I | Cloudy. | | ρ 27 | 9 o | 30,241 | 31 | 933 | 30 | E | I | Fog. | | | 3 o | 30,208 | 35 | 783 | 35 | SW | I | Fine. | | η 28 | 9 o | 30,201 | 33 | 812 | 31 | E | I | Cloudy. | | | 3 o | 30,142 | 39 | 882 | 39 | S | I | Fine. | | ο 29 | 9 o | 30,038 | 34 | 966 | 32½ | E | I | Fine. | | ι 30 | 9 o | 29,949 | 43 | 709 | 44 | SE | I | Fine. | | | 3 o | 29,750 | 41 | 849 | 36 | SE | I | Cloudy. | | δ 31 | 9 o | 29,641 | 44 | 829 | 45 | SSE | I | Cloudy. | | | 4 o | 29,716 | 43 | 861 | 41½ | SSW | I | Cloudy. | | | | 29,699 | 46 | 830 | 47 | S | I | Fine. | ### Whole Month. | Greatest... | 30,552 | 46 | 1,000 | 47 | Rain 0.125 inches. | | Least...... | 29,641 | 17 | 0,000 | 16 | | Mean....... | 30,027 | 34.2 | 841 | 34 | ## METEOROLOGICAL JOURNAL for February, 1826. | Year | Time | Barometer corrected | Therm. without | Degree of Moisture by Daniell's Hygrom. | Sixe's Therm. | Rain | Winds | Weather | |------|------|---------------------|----------------|----------------------------------------|---------------|------|-------|---------| | 1826 | H. M. | Inches. | ° | ° | ° | Inches. | Points. | Str. | | | February | 9 o | 29.796 | 41 | 877 | 40 | — | — | Foggy. | | 3 o | 29.738 | 45 | 859 | 45 | E | I | Cloudy. | | 24 | 9 o | 29.807 | 46 | 898 | 43 | W | I | Cloudy. | | 3 o | 29.772 | 39 | 824 | 40 | SW | I | Fine. | | 9 o | 29.628 | 48 | 904 | 45 | SW | 2 | Fine. | | 3 o | 29.629 | 50 | 910 | 51 | S | 2 | Rain. | | 9 o | 29.843 | 44 | 963 | 43 | SW | I | Cloudy. | | 4 o | 29.837 | 48 | 840 | 49 | — | — | Cloudy. | | 5 o | 29.844 | 45 | 929 | 42 | 0.010 | SSE | I | Fine. | | 3 30 | 29.779 | 47 | 901 | 49 | SSE | 2 | Cloudy. | | 6 | 9 o | 29.484 | 51 | 937 | 46 | W | 3 | Rain. | | 3 o | 29.457 | 52 | 935 | 53 | 0.045 | WbyS | 3 | Rain. | | 7 | 9 o | 29.924 | 43 | 861 | 43 | 0.010 | W | 2 | Fine. | | 3 30 | 30.135 | 48 | 702 | 49 | W | I | Fine. | | 8 | 9 o | 30.335 | 38 | 939 | 36 | S | I | Cloudy. | | 3 o | 30.308 | 47 | 769 | 47 | SW | I | Fine. | | 9 | 9 o | 30.254 | 38 | 970 | 36 | SSE | — | Hazy. | | 3 o | 30.201 | 42 | 895 | 46 | SSE | I | Hazy. | | 10 | 9 o | 30.220 | 33 | 1000 | 32 | E | I | Very hazy. | | 5 o | 30.180 | 35 | 967 | 36 | E | I | Cloudy. | | 11 | 9 o | 30.126 | 36 | 968 | 33 | SE | I | Cloudy. | | 4 o | 30.060 | 39 | 794 | 40 | E | I | Fine. | | 12 | 9 o | 30.029 | 43 | 810 | 35 | SE | I | Fine. | | 3 o | 30.040 | 46 | 864 | 47 | S | I | Cloudy. | | 13 | 9 o | 30.145 | 41 | 904 | 40 | — | — | Hazy. | | 3 30 | 30.018 | 46 | 830 | 48 | SE | I | Fine. | | 14 | 9 o | 29.900 | 45 | 824 | 41 | S | I | Rain. | | 3 o | 29.909 | 46 | 864 | 47 | S | I | Cloudy. | ## METEOROLOGICAL JOURNAL for February, 1826. | 1826 February | Time | Barometer corrected | Therm. without | Degree of Moisture by Daniell's Hygrom. | Sixe's Therm. | Rain | Winds | Weather | |---------------|------|---------------------|---------------|----------------------------------------|--------------|------|-------|---------| | | H, M.| Inches. | | | | | Points | Str. | | 2 15 | 9 o | 29.911 | 46 | 795 | 46 | 0.011| SE | Cloudy. | | | 3 o | 29.840 | 52 | 710 | 53 | | SE | Fine. | | 4 16 | | | | | | | S | Fine. | | | 3 o | 29.653 | 50 | 790 | 53 | | S | Fine. | | 8 17 | 9 o | 29.302 | 48 | 840 | 44 | | SSW | Cloudy. | | | 3 o | 29.354 | 47 | 798 | 49 | | W | Rain. | | 9 18 | 9 o | 29.700 | 40 | 914 | 37 | | SW | Cloudy. | | | 3 o | 29.767 | 44 | 732 | 45 | | S | Hail shower. | | 10 19 | 9 o | 29.487 | 44 | 927 | 38 | 0.125| S | Rain; a very stormy night. | | | 3 o | 29.565 | 52 | 682 | 53 | | W | Cloudy. | | 11 20 | 9 o | 29.755 | 45 | 859 | 44 | | W | Fine; a very stormy night. | | | 3 o | 29.982 | 49 | 680 | 50 | | W | Fine. | | 12 21 | 9 o | 30.279 | 40 | 914 | 38 | | W | Fine. | | | 3 o | 30.291 | 47 | 769 | 48 | 0.165| SW | Cloudy. | | 13 22 | 8 30| 29.952 | 49 | 907 | 46 | | S | Rain. | | | 3 o | 29.867 | 52 | 935 | 53 | 0.078| W | Cloudy. | | 14 23 | 8 30| 29.861 | 44 | 1000 | 44 | 0.145| W | Rain. | | | 3 o | 29.785 | 45 | 929 | 46 | | W | Cloudy. | | 15 24 | 8 30| 30.120 | 35 | 900 | 33½ | 0.030| W | Fine. | | | 3 o | 30.131 | 45 | 753 | 45 | | W | Fine. | | 16 25 | 9 o | 29.968 | 49 | 938 | 42 | 0.192| W | Cloudy. | | | 3 o | 30.006 | 52 | 661 | 54 | | W | Fine. | | 17 26 | 9 o | 30.343 | 40 | 914 | 38 | | W | Fine. | | | 3 o | 30.400 | 48 | 808 | 49 | | WNW | Fine. | | 18 27 | 9 o | 30.287 | 44 | 854 | 41 | | W | Cloudy. | | | 3 o | 30.080 | 50 | 624 | 52 | | W | Cloudy. | | 19 28 | 8 o | 30.179 | 45 | 930 | 43 | 0.020| NW | Cloudy and dark. | | | 3 o | 30.182 | 53 | 847 | 45 | | W | Cloudy. | ### Whole Month - **Greatest:** 30.335 inches - **Least:** 29.302 inches - **Mean:** 29.936 inches Total rainfall: 0.831 inches. ## METEOROLOGICAL JOURNAL for March, 1826. | 1826 March | Time. | Barometer corrected. | Therm. without. | Degree of Moisture by Daniell's Hygrom. | Sixe's Therm. | Rain. | Winds. | Weather. | |------------|-------|---------------------|-----------------|----------------------------------------|--------------|-------|--------|----------| | | H. M. | Inches. | | | | | Points.| Str. | | 8 1 | 9 o | 30.026 | 48 | 808 | 45 | W | 1 | Cloudy. | | | 3 30 | 29.923 | 50 | 820 | 52 | SW | 2 | Cloudy. | | 24 2 | 8 30 | 29.719 | 50 | 940 | 47 | W | 1 | Fine. | | | 3 o | 29.699 | 50 | 880 | 52 | SW | 2 | Rain. | | 8 3 | 9 o | 29.636 | 50 | 910 | 50 | WSW | 1 | Rain. | | | 3 o | 29.723 | 49 | 814 | 50 | 0.158| NW | 1 | Cloudy. | | 2 4 | 9 o | 29.620 | 50 | 790 | 42 | 0.080| W | 3 | Rain. | | | 3 o | 29.647 | 54 | 765 | 55 | S | 2 | Cloudy. | | 5 | 9 o | 29.798 | 43 | 835 | 42 | 0.030| W | 1 | Fine. | | | 4 o | 29.918 | 49 | 814 | 54 | SW | 1 | Fine. | | C 6 | 9 o | 30.132 | 39 | 882 | 36 | E | 1 | Cloudy. | | 7 | 9 o | 29.809 | 57 | 763 | 39 | SSE | 3 | Rain. | | | 3 o | 29.793 | 54 | 791 | 55 | 0.020| W | 2 | Cloudy. | | 8 | 9 o | 30.025 | 50 | 970 | 49½ | S | 1 | Cloudy. | | | 3 o | 29.981 | 57 | 815 | 58 | E | 1 | Fine. | | 24 9 | 9 o | 30.095 | 51 | 937 | 49 | E | 1 | Fine. | | | 3 o | 30.139 | 64 | 698 | 63 | E | 1 | Fine. | | 8 10 | 9 o | 30.291 | 53 | 874 | 50 | E | 1 | Fine. | | | 3 o | 30.284 | 62 | 747 | 65 | SE | 1 | Fine. | ## METEOROLOGICAL JOURNAL for March, 1826. | 1826 March | Time, H. M. | Barometer corrected. Inches. | Therm. without. | Degree of Moisture by Daniell's Hygrom. | Sixe's Therm. | Rain, Inches. | Winds, Points. | Str. | Remarks | |------------|-------------|-----------------------------|----------------|----------------------------------------|--------------|---------------|---------------|-----|---------| | 11 | 9 o | 30.287 | 44 | 963 | 42 | E | 1 | Fine. | | | 3 o | 30.272 | 51 | 850 | 52 | E | 1 | Fine. | | 12 | 9 o | 30.435 | 43 | 861 | 39 | SE | 1 | Fine. | | | 3 o | 30.382 | 50 | 500 | 51 | SE | 2 | Fine. | | 13 | 9 o | 30.420 | 39 | 912 | 36 | E | 1 | Hazy. | | | 3 o | 30.331 | 46 | 705 | 50 | E | 1 | Fine. | | 14 | 9 o | 29.974 | 44 | 890 | 39 | 0.108 | SE | Fine. | | | 3 o | 29.962 | 50 | 700 | 51 | SW | 1 | Fine. | | 15 | 9 o | 29.827 | 45 | 930 | 42 | W | 1 | Cloudy. | | | 3 o | 29.823 | 52 | 682 | 52 | N | 1 | Fine. | | 16 | 9 o | 30.136 | 39 | 882 | 36 | 0.075 | N | Fine, rather hazy. | | | 3 o | 30.235 | 46 | 568 | 52 | N | 1 | Cloudy. | | 17 | 9 o | 30.389 | 37 | 813 | 33 | N | 1 | Cloudy and somewhat hazy. | | | 3 o | 30.326 | 43 | 633 | 45 | E | 1 | Cloudy. | | 18 | 9 o | 30.232 | 35 | 900 | 32 | W | 1 | Hazy. | | | 3 o | 30.577 | 48 | 660 | 48 | S | 1 | Fine. | | 19 | 9 o | 29.855 | 42 | 816 | 34 | 0.065 | W | 1 | Fine. | | | 3 o | 29.836 | 49 | 660 | 50 | N | 2 | Fine. | | 20 | 9 o | 29.950 | 44 | 805 | 37 | NW | 1 | Cloudy. | | | 3 o | 29.916 | 46 | 750 | 49 | N by E | 2 | Cloudy. | | April | 9 o'Clock, A.M. Barom. | Attached Thermometer. | 3 o'Clock, P.M. Barom. | Attached Thermometer. | 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. | |-------|------------------------|----------------------|------------------------|----------------------|---------------------------------|---------------------|-------------------------------|-----------------------------|------------------| | 24 | 30.158 | 54.8 | 30.166 | 57.5 | 51 | 54.2 | 58.8 | 48.8 | WSW | Fine—cloudy. | | 25 | 30.166 | 56.7 | 30.183 | 59.7 | 51 | 56.6 | 62.5 | 50.0 | NNW | Fine—light clouds. | | 26 | 30.215 | 57.0 | 30.141 | 61.0 | 51 | 54.0 | 62.0 | 50.0 | W | Fine—broken clouds. | | 27 | 29.822 | 50.5 | 29.793 | 61.5 | 50 | 59.5 | 58.5 | 52.2 | NW | A.M. nearly cloudless. P.M. cloudy. | | 28 | 29.956 | 56.0 | 29.944 | 57.9 | 39 | 50.8 | 57.0 | 42.8 | WSW | A.M. cloudy. P.M. fine. | | 29 | 29.830 | 56.2 | 29.793 | 58.5 | 53 | 54.9 | 58.8 | 48.9 | SW | Overcast—brisk wind. At 5 P.M. a hail storm. | | 30 | 29.218 | 55.0 | 29.222 | 56.0 | 45 | 52.5 | 49.5 | 48.5 | SW | Dark and cloudy. Frequent showers. | | 31 | 30.130 | 52.2 | 30.144 | 56.0 | 39 | 48.0 | 57.5 | 45.3 | N | Cloudy. | | 32 | 30.235 | 57.0 | 30.214 | 60.0 | 46 | 57.0 | 63.0 | 49.2 | SW | A.M. cloudy. P.M. fine—light clouds. | | 33 | 30.303 | 59.8 | 30.220 | 62.0 | 51 | 58.5 | 65.3 | 49.8 | W | A.M. fine. P.M. cloudy. | | 34 | 30.146 | 57.3 | 30.216 | 59.0 | 49 | 50.5 | 54.8 | 50.8 | NNE | A.M. dark and overcast. Sleet. P.M. fine. | | 35 | 30.315 | 54.0 | 30.243 | 57.0 | 38 | 48.0 | 51.5 | 40.8 | WNW | Fine. | | 36 | 30.229 | 54.0 | 30.220 | 56.0 | 38 | 45.0 | 57.5 | 40.5 | SE | Fine. | | 37 | 30.134 | 55.8 | 30.033 | 58.5 | 42 | 54.2 | 57.5 | 44.0 | SSE | Fine. | | 38 | 29.839 | 55.0 | 29.722 | 58.0 | 42 | 53.5 | 58.0 | 42.0 | E | Fine. | | 39 | 29.707 | 57.8 | 29.639 | 60.0 | 47 | 53.5 | 63.0 | 44.5 | S by W | Fine—light clouds. | | 40 | 29.606 | 60.0 | 29.629 | 62.8 | 49 | 61.0 | 63.8 | 54.0 | SE | Cloudy. | | 41 | 29.800 | 56.0 | 29.804 | 58.0 | 43 | 49.0 | 53.5 | 46.0 | NW | Overcast. | | 42 | 29.911 | 53.8 | 29.899 | 56.0 | 39 | 47.0 | 53.2 | 38.0 | W | A.M. cloudy. P.M. fine—broken clouds. | | 43 | 30.018 | 52.5 | 29.920 | 54.0 | 37 | 47.0 | 51.5 | 40.0 | NW | Fine—overcast. | | 44 | 29.697 | 54.5 | 29.621 | 55.0 | 36 | 49.0 | 50.0 | 43.5 | NW | Fine—cloudy. | | 45 | 29.419 | 51.0 | 29.402 | 51.0 | 42 | 45.0 | 47.0 | 42.5 | SE | Overcast and slightly hazy. | | 46 | 29.895 | 51.0 | 29.913 | 50.0 | 28 | 40.0 | 43.0 | 33.5 | NW | A.M. cloudy. P.M. fine—light clouds. | | 47 | 30.023 | 49.0 | 30.031 | 50.5 | 35 | 43.0 | 48.5 | 34.5 | NW | Overcast and cloudy. | | 48 | 30.140 | 50.5 | 30.148 | 51.0 | 37 | 47.0 | 50.5 | 34.5 | NNE | A.M. fine—light clouds. P.M. overcast. | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. * The Rain Gage undergoing repair during the months of April, May, and June. **OBSERVANDA.** Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 ft. 2½ in. .................................above the mean level of the Sea (presumed about) = 95 ft. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gage above the Court of Somerset House = 79 ft. 0 in. The hours of observation are of Mean Time—the day beginning at Midnight. The Thermometers are graduated by Fahrenheit's Scale. The Barometer is divided into inches and decimals. | May | 9 o’Clock, A.M. Barom. | Attached Thermometer. | 3 o’Clock, P.M. Barom. | Attached Thermometer. | 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 | |-----|------------------------|----------------------|------------------------|----------------------|---------------------------------|-------------------|------------------|-----------------|-------------| | 1 | 30.309 | 51.5 | 30.220 | 52.0 | 38 | 46.0 | 51.5 | 39.0 | NNE | Fine—cloudy. | | 2 | 30.144 | 49.0 | 30.010 | 52.3 | 39 | 48.0 | 57.5 | 36.5 | N | Fine—light clouds. | | 3 | 30.025 | 51.5 | 30.045 | 52.0 | 44 | 48.0 | 48.0 | 43.0 | NNE | Overcast and hazy. | | 4 | 30.047 | 50.0 | 30.010 | 50.5 | 34 | 44.5 | 46.5 | 39.5 | NE | Fine—cloudy. | | 5 | 30.010 | 49.0 | 30.095 | 53.0 | 43 | 45.0 | 50.0 | 40.0 | NE | Cloudy. | | 6 | 30.041 | 50.0 | 30.020 | 51.0 | 35 | 45.0 | 48.0 | 39.5 | NNW | Cloudy—showery. | | 7 | 30.018 | 52.0 | 30.004 | 52.0 | 40 | 49.0 | 51.0 | 39.0 | NNE | Cloudy. | | 8 | 30.027 | 55.0 | 30.004 | 56.0 | 43 | 54.0 | 57.0 | 41.5 | NE | Fine—strong wind. | | 9 | 30.095 | 54.5 | 30.008 | 56.0 | 36 | 51.5 | 60.5 | 39.0 | NNE | Fine—thin scattered clouds. | | 10 | 30.095 | 56.5 | 30.012 | 57.7 | 44 | 55.5 | 61.0 | 44.5 | NNW | Fine—cloudy. | | 11 | 30.117 | 54.5 | 30.126 | 58.0 | 39 | 51.0 | 58.0 | 49.0 | ESE | Foggy and overcast. | | 12 | 30.223 | 54.7 | 30.229 | 56.7 | 39 | 51.0 | 42.5 | 54.5 | ESE | Cloudy and overcast. | | 13 | 30.297 | 55.0 | 30.202 | 56.0 | 34 | 50.0 | 54.0 | 43.5 | SE | Fine. | | 14 | 30.111 | 58.0 | 30.051 | 57.0 | 41 | 53.0 | 57.5 | 39.0 | E | Fine—overcast. | | 15 | 30.146 | 58.8 | 30.136 | 58.3 | 39 | 54.0 | 57.0 | 40.5 | N | Fine—overcast. | | 16 | 30.146 | 57.0 | 30.113 | 58.0 | 45 | 52.0 | 62.0 | 42.5 | E | Overcast and cloudy. | | 17 | 30.115 | 63.0 | 30.142 | 62.5 | 45 | 51.0 | 66.5 | 50.5 | W | Fine—light clouds. | | 18 | 30.105 | 65.0 | 30.105 | 63.0 | 52 | 66.0 | 63.5 | 55.8 | SSW | A.M. fine. P.M. rain: | | 19 | 29.911 | 67.0 | 29.831 | 65.0 | 51 | 63.0 | 68.5 | 50.2 | S | Fine—nearly cloudless. | | 20 | 29.730 | 61.5 | 29.833 | 63.5 | 50 | 56.5 | 63.0 | 53.5 | E | A.M. overcast. P.M. fine—nearly cloudless | | 21 | 30.025 | 59.0 | 30.029 | 62.0 | 46 | 54.0 | 65.0 | 45.8 | SE | A.M. cloudy. P.M. fine—nearly cloudless. | | 22 | 30.105 | 67.5 | 30.027 | 66.0 | 48 | 64.0 | 71.0 | 49.5 | N | Nearly cloudless. | | 23 | 30.044 | 69.0 | 29.944 | 66.0 | 49 | 64.0 | 61.5 | 48.6 | NNW | Cloudy. | | 24 | 29.818 | 61.0 | 29.820 | 64.0 | 50 | 56.5 | 57.5 | 52.0 | N | Rain—overcast. | | 25 | 29.732 | 60.0 | 29.691 | 62.0 | 54 | 55.8 | 58.0 | 52.0 | N | Light rain—cloudy and overcast. | | 26 | 29.691 | 60.0 | 29.720 | 63.0 | 53 | 55.0 | 60.0 | 53.2 | E | Light rain—cloudy and overcast. | | 27 | 29.821 | 62.0 | 29.821 | 64.5 | 57 | 60.8 | 64.0 | 62.8 | E | Cloudy—showery. | | 28 | 29.905 | 67.5 | 29.834 | 66.0 | 56 | 58.9 | 60.0 | 50.0 | NE | Overcast. | | 29 | 29.746 | 58.5 | 29.839 | 59.5 | 54 | 52.0 | 51.0 | 55.0 | NE | Continued rain—overcast. | | 30 | 29.924 | 58.5 | 29.938 | 59.5 | 55 | 53.0 | 54.8 | 51.0 | W | Continued rain—overcast. | | 31 | 29.924 | 58.2 | 29.930 | 60.5 | 52 | 54.5 | 57.0 | 51.5 | E | Dark and overcast. | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. \[ \{ 9 \text{ A.M.} \quad 3 \text{ P.M.} \} \] \[ \begin{align*} \text{Mean} & = 29.950 \\ \text{Mean} & = 29.928 \\ \end{align*} \] OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge ........... = 83 ft. 2½ in. ................................. above the mean level of the Sea (presumed about) = 95 ft. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gage above the Court of Somerset House .......... = 79 ft. 0 in. The hours of observation are of Mean Time—the day beginning at Midnight. The Thermometers are graduated by Fahrenheit's Scale. The Barometer is divided into inches and decimals. MDCCCXXVII. | 1826. | June. | 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 | |-------|-------|-----------------|-----------------|---------------------------------|---------------------|-----------------------------|------------------------|----------| | | Barom. | Attached Thermometer. | Barom. | Attached Thermometer. | Fahrenheit. | Self-registering. | Lowest. | Highest. | | | 24 | 29.909 | 59.5 | 29.841 | 62.0 | 53 | 54.0 | 59.5 | 52.0 | 61.0 | SW | Overcast and cloudy. | | 2 | 29.928 | 59.0 | — | — | 53 | 53.5 | — | 52.5 | 62.0 | E | Overcast. | | 3 | 30.130 | 65.5 | 30.126 | 64.0 | 49 | 61.0 | 64.0 | 49.8 | 68.0 | NW var. | Fine—light clouds—brisk wind. | | 4 | 30.216 | 68.0 | 30.235 | 65.0 | 55 | 66.5 | 67.0 | 50.0 | 69.0 | SW | A. M. fine, P. M. cloudy and overcast. | | 5 | 30.307 | 66.8 | — | — | 54 | 62.5 | 65.0 | 52.9 | 67.5 | NE | Fine—cloudy. | | 6 | 30.307 | 65.5 | 30.307 | 66.0 | 49 | 60.0 | 69.0 | 53.0 | 71.8 | S | Fine—cloudy. | | 7 | 30.245 | 70.5 | 30.223 | 68.0 | 58 | 62.5 | 62.5 | 58.0 | 67.0 | S | Overcast and cloudy. | | 8 | 30.297 | 68.5 | 30.247 | 67.0 | 57 | 64.0 | 67.5 | 53.0 | 70.5 | N | Cloudy—brisk wind. | | 9 | 30.049 | 72.0 | 30.010 | 70.0 | 58 | 69.5 | 74.0 | 53.8 | 75.2 | E | Fine—light clouds—strong wind. | | 10 | 30.033 | 72.5 | 29.994 | 70.6 | 59 | 67.5 | 72.5 | 53.2 | 75.5 | N | Fine—nearly cloudless. | | 11 | 30.122 | 67.0 | 30.196 | 70.0 | 57 | 63.0 | 73.0 | 55.2 | 75.0 | N | Fine. | | 12 | 30.313 | 74.0 | 30.297 | 73.0 | 58 | 70.8 | 75.0 | 60.0 | 76.5 | E | Fine—cloudy. | | 13 | 30.317 | 71.0 | 30.243 | 74.5 | 59 | 72.5 | 78.0 | 62.0 | 79.5 | E | Fine—nearly cloudless. | | 14 | 30.251 | 72.5 | 30.223 | 74.5 | 60 | 71.0 | 77.5 | 61.5 | 80.8 | W | Fine—light clouds. | | 15 | 30.239 | 76.0 | 30.136 | 74.0 | 57 | 71.5 | 77.7 | 60.0 | 79.5 | W | Fine—nearly cloudless—imperfectly clear. | | 16 | 30.334 | 75.8 | 30.323 | 71.5 | 44 | 63.0 | 67.5 | 53.8 | 79.5 | N | Fine—light clouds. | | 17 | 30.439 | 67.0 | 30.317 | 68.5 | 50 | 62.0 | 72.0 | 54.0 | 74.5 | SW | Fine—light broken clouds. | | 18 | 30.326 | 76.5 | 30.336 | 74.8 | 59 | 72.5 | 76.0 | 62.0 | 77.5 | WNW | Fine—light clouds. | | 19 | 30.439 | 68.8 | 30.408 | 70.5 | 57 | 66.0 | 68.9 | 61.0 | 73.0 | E | Fine—light broken clouds. | | 20 | 30.499 | 65.0 | 30.431 | 69.5 | 47 | 65.0 | 71.0 | 53.5 | 72.0 | SE | Fine—cloudy. | | 21 | 30.425 | 62.6 | 30.427 | 65.0 | 50 | 60.0 | 64.5 | 50.5 | 66.4 | S | Overcast and cloudy. | | 22 | 30.408 | 61.0 | 30.328 | 65.8 | 54 | 58.5 | 69.0 | 53.8 | 70.5 | E | Fine—light clouds. | | 23 | 30.425 | 62.0 | 30.418 | 67.3 | 54 | 60.0 | 72.0 | 51.5 | 73.3 | N | Fine and cloudless—imperfectly clear. | | 24 | 30.408 | 69.5 | 30.406 | 72.2 | 51 | 68.2 | 77.0 | 52.0 | 78.0 | N | Fine and cloudless—imperfectly clear. | | 25 | 30.347 | 69.5 | 30.309 | 72.5 | 51 | 71.0 | 75.0 | 56.0 | 75.2 | E | Fine and cloudless—imperfectly clear | | 26 | 30.220 | 72.0 | 30.212 | 74.8 | 59 | 74.0 | 76.0 | 57.0 | 80.3 | E | Fine and cloudless—imperfectly clear | | 27 | 30.051 | 75.0 | 30.010 | 77.0 | 62 | 77.2 | 82.0 | 65.0 | 87.5 | SE | Fine and cloudless. Thunder at 11 P. M. | | 28 | 30.115 | 79.8 | 30.105 | 78.5 | 62 | 80.0 | 77.0 | 69.0 | 87.0 | S | A.M. cloudless, P.M. dark and cloudy. | | 29 | 30.233 | 75.5 | 30.223 | 76.5 | 62 | 73.5 | 77.5 | 63.0 | 81.5 | S | At 2h. 35m. P. M. thunder with rain. | | 30 | 30.221 | 76.8 | 30.208 | 76.5 | 62 | 75.2 | 79.5 | 63.0 | 84.5 | WSW | Fine—cloudy. | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. \[ \begin{array}{cccccccc} \text{Mean} & \text{Mean} & \text{Mean} & \text{Mean} & \text{Mean} & \text{Mean} & \text{Mean} & \text{Mean} \\ 30.252 & 69.5 & 30.233 & 70.7 & 55.3 & 66.5 & 72.0 & 56.4 & 74.6 \\ \end{array} \] OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge........ = 83 ft. 2½ in. .................................................. above the mean level of the Sea (presumed about) = 95 ft. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gage above the Court of Somerset House ........... = 79 ft. 0 in. The hours of observation are of Mean Time—the day beginning at Midnight. The Thermometers are graduated by Fahrenheit’s Scale. The Barometer is divided into inches and decimals. | July | 9 o'Clock, A. M. Barom. | Attached Thermometer. | 3 o'Clock, P. M. Barom. | Attached Thermometer. | 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 | |------|------------------------|-----------------------|------------------------|-----------------------|---------------------------------|---------------------|-------------------------------|-----------------------------|------------------| | 1 | 30.212 | 72.0 | 30.196 | 75.0 | 64 | 69.5 | 75.5 | 67.4 | 76.8 | WSW Overcast and cloudy. | | 2 | 30.297 | 76.2 | 30.239 | 75.0 | 56 | 75.5 | 79.0 | 62.4 | 81.2 | NW Fine and clear—a few broken clouds. | | 3 | 30.299 | 74.0 | 30.241 | 76.8 | 65 | 74.0 | 80.0 | 64.8 | 83.0 | S var. Fine—cloudy—brisk wind. | | 4 | 30.111 | 77.0 | 30.025 | 77.5 | 62 | 77.0 | 79.0 | 62.8 | 81.4 | E Fine—cloudy. | | 5 | 29.944 | 80.0 | 29.932 | 78.5 | 65 | 78.5 | 80.0 | 67.5 | 82.5 | SW Fine—nearly cloudless—strong wind. | | 6 | 29.942 | 67.5 | 29.903 | 74.5 | 64 | 67.0 | 78.5 | 63.8 | 81.2 | S Fine—cloudy. | | 7 | 29.778 | | 29.712 | | 64 | 75.5 | 78.0 | | | SSW Fine. N. | | 8 | 29.655 | | 29.634 | | 63 | 76.0 | 77.0 | | | SW Overcast—showery. N. | | 9 | 29.647 | | 29.611 | | 66 | 74.0 | 78.0 | | | SW Overcast. N. | | 10 | 29.704 | | 29.757 | | 64 | 71.0 | 76.0 | | | W Fine—cloudy. N. | | 11 | 29.842 | | 29.866 | | 64 | 70.0 | 73.0 | | | W Cloudy. Thunder at 11 A.M. N. | | 12 | 29.843 | | 29.715 | | 65 | 67.0 | 72.0 | | | SW Cloudy. N. | | 13 | 29.672 | | 29.605 | | 68 | 68.5 | 68.0 | | | SW Cloudy—showery. N. | | 14 | 29.739 | | 29.764 | | 67 | 68.0 | 73.0 | | | W Fine. N. | | 15 | 29.849 | | 29.819 | | 65 | 68.0 | 72.0 | | | W Fine. N. | | 16 | 29.790 | | 29.729 | | 63 | 63.0 | 68.0 | | | W Fine—cloudy—showery. N. | | 17 | 29.975 | | 29.929 | | 57 | 66.0 | 73.0 | | | W by N Fine. N. | | 18 | 29.951 | | 29.876 | | 64 | 67.0 | 74.0 | | | WNW Fine. N. | | 19 | 29.921 | | 29.938 | | 55 | 65.0 | 71.0 | | | W by N Fine. N. | | 20 | 29.990 | | 29.976 | | 55 | 69.0 | 67.5 | | | NW Very cloudy—brisk wind. | | 21 | 29.606 | | 29.635 | | 57 | 64.8 | 65.0 | 61.0 | 69.2 | SW Sky clear—dark clouds and strong wind—showery. | | 22 | 29.802 | | 29.901 | | 58 | 68.0 | 65.0 | 54.5 | 66.8 | E Cloudy—brisk wind. | | 23 | 29.944 | | 30.029 | | 59 | 56.5 | 57.5 | 55.8 | 61.0 | SW Overcast and gloomy—strong wind—showery. | | 24 | 30.035 | | 30.105 | | 58 | 60.0 | 68.0 | 55.5 | 69.5 | N Fine—light clouds—strong wind. | | 25 | 30.136 | | 30.136 | | 57 | 62.0 | 72.0 | 55.4 | 73.8 | N Clear and cloudless. | | 26 | 30.301 | | 30.322 | | 56 | 66.0 | 70.1 | 56.0 | 72.0 | ESE Fine—light clouds—brisk wind. | | 27 | 30.332 | | 30.317 | | 54 | 63.5 | 70.5 | 52.3 | 72.4 | N Fine—light clouds. | | 28 | 30.251 | | 30.212 | | 53 | 65.0 | 71.5 | 57.0 | 73.5 | E Fine—nearly cloudless. | | 29 | 30.124 | | 30.103 | | 56 | 69.0 | 75.0 | 57.8 | 75.8 | SE Fine—nearly cloudless. | | 30 | 30.122 | | 30.041 | | 58 | 72.0 | 76.0 | 61.0 | 79.1 | W Cloudless. | | 31 | 30.031 | | 30.004 | | 59 | 75.0 | 80.0 | 67.5 | 82.4 | SE At 10 A.M. thunder and lightning, with a few drops of rain. P. M. cloudless. | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. \[ \begin{align*} \text{Mean} & = 29.965 \\ \text{Mean} & = 70.1 \\ \text{Mean} & = 29.944 \\ \text{Mean} & = 71.8 \\ \text{Mean} & = 60.7 \\ \text{Mean} & = 68.7 \\ \text{Mean} & = 73.0 \\ \text{Mean} & = 60.1 \\ \text{Mean} & = 75.7 \\ \text{Sum} & = 2.359 \end{align*} \] OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge........ = 83 ft. 2½ in. ......................... above the mean level of the Sea (presumed about) = 95 ft. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gage above the Court of Somerset House ........... = 79 ft. 0 in. The hours of observation are of Mean Time—the day beginning at Midnight. The Thermometers are graduated by Fahrenheit’s scale. The Barometer is divided into inches and decimals. | August | 9 o'Clock A.M. Barom. | 3 o'Clock P.M. Barom. | 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 | |--------|----------------------|-----------------------|-------------------------------------|---------------------|-------------------------------|-------------------------------|---------| | 1826 | | | | Fahrenheit | Self-registering | | | | | | | | 9 A.M. | 3 P.M. Lowest. | Highest. | | | 8 | 30.103 | 74.0 | 30.101 | 78.5 | 65 | 71.5 | 78.5 | 68.0 | 80.0 | NNE | Fine—light clouds. | | 2 | 30.023 | 70.0 | 29.994 | 76.0 | 63 | 68.0 | 76.0 | 63.0 | 77.0 | E | Fine—thin spreading clouds. | | 3 | 29.911 | 68.0 | 29.911 | 72.0 | 66 | 65.2 | 72.0 | 64.8 | 73.8 | NNE | Overcast. At 10th 30th P.M. lightning and heavy rain. | | 4 | 29.994 | 65.2 | 30.008 | 72.6 | 61 | 63.5 | 71.0 | 59.2 | 73.2 | N | Overcast and lowering. | | 5 | 30.041 | 63.3 | 30.081 | 68.0 | 62 | 61.5 | 67.0 | 58.0 | 69.2 | N | Overcast and gloomy. | | 6 | 30.109 | 67.8 | 30.137 | 71.9 | 57 | 65.5 | 71.9 | 58.0 | 73.5 | NW | Fine—light clouds. | | 7 | 30.216 | 70.0 | 30.198 | 73.0 | 55 | 67.8 | 73.5 | 63.0 | 74.8 | SSW | Fine—light clouds. | | 8 | 30.119 | 71.0 | 30.095 | 74.6 | 65 | 69.8 | 74.6 | 62.0 | 75.7 | SW | Fine—nearly cloudless. | | 9 | 30.029 | 69.0 | 29.994 | 74.0 | 59 | 67.9 | 74.0 | 62.4 | 74.6 | 0.031 | Sky overspread with small clouds. | | 10 | 30.000 | 67.6 | 29.922 | 71.5 | 59 | 67.8 | 71.0 | 61.6 | 72.6 | N | Fine—nearly cloudless. | | 11 | 29.905 | 65.0 | 29.831 | 65.4 | 61 | 62.0 | 63.0 | 60.0 | 65.5 | SSW | Overcast—showery. | | 12 | 30.016 | 64.8 | 30.045 | 68.0 | 53 | 63.5 | 67.5 | 55.2 | 70.5 | 0.010 | Fine—light clouds. | | 13 | 30.247 | 65.0 | 30.196 | 69.0 | 55 | 64.3 | 68.7 | 55.0 | 70.6 | WSW | A.M. cloudless. P.M. cloudy and overcast. | | 14 | 29.994 | 67.0 | 29.920 | 72.5 | 56 | 66.5 | 72.2 | 56.5 | 75.5 | SSW | Fine and clear—strong breeze. | | 15 | 30.124 | 66.2 | 30.041 | 70.0 | 54 | 66.0 | 70.0 | 57.0 | 72.0 | SSW | A.M. lowering—brisk wind—showery. | | 16 | 29.946 | 66.8 | 29.994 | 69.0 | 64 | 65.0 | 69.0 | 61.2 | 70.3 | SSW | Fine—light stretching clouds. | | 17 | 30.136 | 65.6 | 30.134 | 70.5 | 57 | 64.5 | 71.0 | 56.6 | 73.0 | WSW | Fine—light fleecy clouds. | | 18 | 30.316 | 69.2 | 30.326 | 74.5 | 65 | 69.8 | 75.5 | 64.2 | 76.4 | SSW | Fine—nearly cloudless. | | 19 | 30.322 | 70.0 | 30.241 | 75.0 | 57 | 69.5 | 75.2 | 63.0 | 77.6 | SW | Fine and clear—nearly cloudless. | | 20 | 30.095 | 70.5 | 30.031 | 77.8 | 66 | 70.0 | 79.0 | 62.7 | 81.2 | NE | Cloudy and foggy. | | 21 | 29.948 | 65.0 | 29.938 | 71.2 | 59 | 63.0 | 70.5 | 61.2 | 72.5 | NNE | Fine. Strong unsteady wind during the night. | | 22 | 29.905 | 68.4 | 29.930 | 72.0 | 60 | 67.0 | 72.5 | 61.6 | 74.0 | ESE | Lowering—strong, unsteady wind. | | 23 | 29.837 | 68.0 | 29.735 | 70.0 | 62 | 66.5 | 69.0 | 62.0 | 71.8 | SSW | A.M. nearly cloudless. P.M. very cloudy. | | 24 | 29.716 | 70.0 | 29.738 | 70.6 | 60 | 65.8 | 70.5 | 61.0 | 73.8 | SW | Fine—brisk wind. At 3 P.M. thunder and lightning, with rain—sultry. | | 25 | 29.798 | 70.4 | 29.720 | 73.0 | 62 | 69.5 | 74.5 | 64.8 | 75.9 | SSW | Fine—light broken clouds—brisk wind. | | 26 | 29.821 | 66.9 | 29.823 | 69.6 | 63 | 65.5 | 68.5 | 62.8 | 70.6 | W by N | Cloudy. | | 27 | 29.950 | 66.5 | 30.008 | 69.0 | 56 | 63.5 | 68.0 | 57.5 | 70.0 | SSW | Cloudy and lowering. | | 28 | 30.004 | 66.2 | 30.014 | 71.2 | 63 | 65.0 | 69.9 | 58.5 | 72.5 | ESE | Fine and clear—light clouds—showery. | | 29 | 29.956 | 70.8 | 29.893 | 72.6 | 68 | 68.8 | 73.0 | 65.6 | 74.5 | SE | Fine—cloudy. | | 30 | 29.764 | 70.5 | 29.706 | 74.0 | 66 | 70.4 | 74.5 | 64.9 | 77.5 | SSE | Cloudy and overcast. | | 31 | 29.849 | 67.8 | 29.848 | 70.5 | 60 | 65.0 | 69.0 | 63.0 | 71.5 | | | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. 9 A.M. 3 P.M. 29.917 29.886 OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 ft. 2½ in. above the mean level of the Sea (presumed about) = 95 ft. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gage above the Court of Somerset House = 79 ft. 0 in. The hours of observation are of Mean Time—the day beginning at Midnight. The Thermometers are graduated by Fahrenheit's Scale. The Barometer is divided into inches and decimals. | September | 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 | |-----------|-----------------|-----------------|----------------------------------------|---------------------|----------------------------------|-----------------------------|---------| | | Barom. | Attached Thermo-| Barom. | Fahrenheit | Self-registering | | | | | | meter. | | 9 A. M. | Lowest. | Highest. | | | | | | | 3 P. M. | | | | | 1826 | | | | | | | | | 1 | 29.825 | 65.2 | 29.807 | 69.5 | 60 | 63.0 | 67.9 | 60.2 | 69.5 | ESE | | 2 | 29.720 | 62.7 | 29.701 | 65.4 | 63 | 62.0 | 62.0 | 58.7 | 64.8 | N var. | | 3 | 29.792 | 65.8 | 29.869 | 67.8 | 64 | 63.0 | 65.5 | 61.1 | 67.0 | NE | | 4 | 29.958 | 65.2 | 29.942 | 70.5 | 64 | 64.8 | 70.0 | 59.3 | 72.3 | ESE | | 5 | 29.947 | 63.5 | 29.921 | 64.5 | 61 | 62.8 | 60.5 | 58.5 | 64.8 | NNW | | 6 | 29.905 | 58.0 | 29.237 | 66.0 | 56 | 56.8 | 64.0 | 55.0 | 65.6 | NE | | 7 | 29.166 | 57.8 | 29.452 | 58.7 | 56 | 55.0 | 56.0 | 52.9 | 57.5 | WNW | | 8 | 29.631 | 57.0 | 29.635 | 63.1 | 55 | 56.5 | 64.8 | 50.0 | 66.6 | SW | | 9 | 29.771 | 58.0 | 29.822 | 61.3 | 54 | 54.6 | 62.0 | 52.9 | 63.0 | ESE | | 10 | 30.022 | 59.1 | 30.064 | 63.2 | 53 | 57.3 | 62.9 | 50.0 | 63.9 | SW | | 11 | 30.213 | 56.8 | 30.215 | 62.5 | 53 | 55.3 | 62.0 | 49.9 | 63.8 | WNW | | 12 | 30.240 | 56.5 | 30.197 | 63.6 | 54 | 55.5 | 63.5 | 49.8 | 65.0 | SW | | 13 | 30.089 | 58.2 | 30.017 | 64.5 | 56 | 57.9 | 64.0 | 52.0 | 65.0 | SSW | | 14 | 29.912 | 59.4 | 29.929 | 66.2 | 58 | 59.0 | 65.4 | 52.7 | 67.7 | SW | | 15 | 30.226 | 53.0 | 30.270 | 61.8 | 51 | 53.0 | 61.2 | 47.2 | 62.4 | N | | 16 | 30.290 | 55.4 | 30.213 | 62.9 | 54 | 56.0 | 62.1 | 48.0 | 66.9 | E | | 17 | 30.007 | 56.8 | 29.949 | 65.0 | 56 | 57.2 | 66.2 | 50.3 | 68.0 | ENE | | 18 | 29.849 | 62.2 | 29.782 | 63.8 | 62 | 61.5 | 61.5 | 57.2 | 64.0 | NE | | 19 | 29.903 | 64.3 | 29.901 | 66.5 | 63 | 63.0 | 67.0 | 61.0 | 68.0 | SSW | | 20 | 29.840 | 61.3 | 29.843 | 64.5 | 61 | 59.7 | 63.0 | 59.0 | 64.0 | WNW var.| | 21 | 30.054 | 59.9 | 30.083 | 63.6 | 54 | 57.0 | 60.8 | 51.8 | 63.2 | NE | | 22 | 30.135 | 53.0 | 30.126 | 58.5 | 51 | 52.5 | 58.9 | 46.2 | 58.5 | ESE | | 23 | 30.055 | 51.0 | | | 48 | 51.6 | 43.8 | | | E | | 24 | | 29.641 | | | | | | | | N | | 25 | 29.639 | | | | | | | | | S | | 26 | 29.802 | | | | | | | | | SW | | 27 | 29.968 | | | | | | | | | W | | 28 | 30.156 | | | | | | | | | SW | | 29 | 30.146 | | | | | | | | | SW | | 30 | 29.762 | | | | | | | | | SW | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. \[ \{ 9 \text{ A. M.} \quad 3 \text{ P. M.} \} \] \[ \{ 29.867 \quad 29.820 \} \] **OBSERVANDA.** Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge = 83 ft. 2½ in. ................................. above the mean level of the Sea (presumed about) = 95 ft. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gage above the Court of Somerset House = 79 ft. 0 in. The hours of observation are of Mean time—the day beginning at Midnight. The Thermometers are graduated by Fahrenheit's scale. The Barometer is divided into inches and decimals. | October | 9 o’Clock, A. M. Barom. | 3 o’Clock, P. M. Barom. | 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 | |---------|------------------------|------------------------|---------------------------------|---------------------|----------------------------------|-----------------------------|----------| | | Attached Thermometer. | Attached Thermometer. | | | | | | | 1826 | | | | | | | | | 1 | 29.802 | 29.786 | 60 | 58.0 | 62.0 | W | Rain. N. | | 2 | 29.944 | 29.938 | 55 | 54.0 | 60.0 | SE | Fine. N. | | 3 | 29.909 | 29.893 | 55 | 54.0 | 59.0 | W | Fine. N. | | 4 | 29.772 | 58.0 | 56.3 | 53 | 52.0 | SW | A. M. cloudless. P.M. gloomy—very small rain. | | 5 | 29.787 | 50.0 | 55.0 | 44 | 46.0 | SSW | Cloudy and hazy. | | 6 | 30.118 | 47.0 | 30.123 | 52.0 | 40 | SW | Fine and cloudless—hazy. | | 7 | 30.105 | 50.0 | 30.055 | 56.2 | 47 | S | Cloudy—brisk wind. | | 8 | 29.949 | 56.8 | 29.848 | 59.5 | 55 | SSW | Fine and clear—brisk wind. Heavy rain at 8 P.M. | | 9 | 29.809 | 55.1 | 29.775 | 57.2 | 50 | WNW | Cloudy and overcast—showery. | | 10 | 29.683 | 53.0 | 29.722 | 61.6 | 52 | SSW | Overcast—showery. | | 11 | 30.079 | 61.0 | 30.098 | 65.0 | 59 | WSW | Fine—light clouds. | | 12 | 30.133 | 61.8 | 30.104 | 64.0 | 61 | SW | Fine—cloudy. | | 13 | 30.079 | 62.4 | 30.123 | 63.5 | 61 | WSW | Overcast—brisk wind. | | 14 | 30.211 | 49.5 | 30.153 | 56.8 | 46 | E | Overcast and foggy. | | 15 | 29.944 | 58.0 | 29.809 | 61.2 | 56 | ESE | A. M. foggy. P.M. fine and clear. | | 16 | 29.629 | 59.8 | 29.639 | 63.0 | 57 | SSE | Cloudy. At 2 P.M. thunder, with heavy rain. | | 17 | 30.030 | 55.8 | 29.991 | 59.6 | 50 | ESE | A. M. overcast. P.M. fine and clear. | | 18 | 29.994 | 56.8 | 30.004 | 59.1 | 54 | ENE | Overcast and foggy. | | 19 | 30.017 | 59.5 | 30.000 | 61.3 | 58 | E var. | Overcast and gloomy—brisk wind. | | 20 | 29.992 | 61.8 | 29.974 | 62.7 | 59 | ESE | Overcast—faintly hazy. | | 21 | 30.000 | 61.4 | 29.978 | 65.0 | 60 | SE | Fine—cloudy. | | 22 | 29.960 | 62.1 | 29.919 | 63.2 | 60 | SE | Overcast and gloomy—showery. | | 23 | 29.921 | 62.1 | 29.912 | 63.5 | 60 | SE | Strong fog. Thunder and lightning with heavy rain, at noon. | | 24 | 29.961 | 61.1 | 29.872 | 63.2 | 57 | SW var. | Fine—cloudy—light clouds. | | 25 | 29.425 | 60.3 | 29.409 | 61.3 | 58 | SW var. | Fine. Violent gales during the early part of the morning. | | 26 | 29.434 | 54.3 | 29.496 | 54.7 | 43 | WNW | Fine—light clouds—faint haze. | | 27 | 29.635 | 53.0 | 29.618 | 54.2 | 48 | S by E | Overcast and foggy—showery. | | 28 | 30.119 | 51.0 | 30.114 | 53.9 | 43 | WNW | Cloudy. | | 29 | 30.155 | 50.8 | 30.092 | 53.2 | 46 | WSW | Overcast and hazy. | | 30 | 30.128 | 53.1 | 30.085 | 54.2 | 51 | SE | Overcast and gloomy. | | 31 | 30.098 | 53.0 | 30.078 | 54.3 | 47 | NW | Fine—cloudy. | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. \[ \text{Mean} = \frac{29.930 + 56.4 + 29.909 + 59.1 + 53.1}{5} = 53.6 \] \[ \text{Mean} = \frac{57.4 + 50.3}{2} = 53.9 \] \[ \text{Sum} = 1.871 \] OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge........ = 83 ft. 2\(\frac{1}{2}\) in. .........................above the mean level of the Sea (presumed about) = 95 ft. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gage above the Court of Somerset House ........ = 79 ft. 0 in. The hours of observation are of Mean Time—the day beginning at Midnight. The Thermometers are graduated by Fahrenheit’s Scale. The Barometer is divided into inches and decimals. | November | 9 o’Clock, A. M. Barom. | Attached Thermometer. | 9 o’Clock, A. M. Barom. | Attached Thermometer. | 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 | |----------|------------------------|----------------------|------------------------|----------------------|---------------------------------|---------------------|-----------------------------|-----------------------------|------------------| | 1826 | | | | | | | | | | | 1 | 29.758 | 50.6 | 29.609 | 52.7 | 44 | 45.3 | 47.8 | 41.5 | SW | | | | | | | | | | | Overcast—disjointed clouds. | | 2 | 29.792 | 46.6 | 29.825 | 50.0 | 39 | 42.0 | 47.8 | 40.0 | NNW | | | | | | | | | | | Fine and cloudless—very faint haze. | | 3 | 29.908 | 48.0 | 29.825 | 51.6 | 46 | 46.1 | 50.2 | 43.0 | NNE | | | | | | | | | | | Violent gales, with rain, in the evening and during the night. | | 4 | 29.767 | 50.2 | 29.782 | 50.9 | 49 | 47.8 | 47.0 | 46.6 | NNE | | | | | | | | | | | Overcast and gloomy. Continued rain. | | 5 | 29.866 | 48.2 | 29.812 | 50.3 | 46 | 45.7 | 47.8 | 42.0 | NNE | | | | | | | | | | | Overcast and gloomy. Showery. | | 6 | 29.789 | 48.5 | 29.778 | 48.4 | 46 | 45.0 | 42.8 | 43.8 | W | | | | | | | | | | | Overcast and gloomy. Frequent showers. | | 7 | 29.931 | 41.3 | 29.982 | 42.8 | 30 | 34.1 | 40.8 | 30.3 | W | | | | | | | | | | | Fine—light clouds. | | 8 | 30.092 | 40.8 | 30.085 | 42.6 | 33 | 35.2 | 40.6 | 32.3 | W | | | | | | | | | | | Cloudless—faint haze. | | 9 | 30.155 | 40.0 | 30.172 | 43.1 | 36 | 36.8 | 42.2 | 32.5 | NNW | | | | | | | | | | | Nearly cloudless. | | 10 | 30.071 | 40.0 | 29.920 | 42.5 | 33 | 35.6 | 44.1 | 31.2 | SW | | | | | | | | | | | Overcast, gloomy, and foggy. | | 11 | 29.801 | 44.7 | 29.689 | 47.2 | 49 | 47.0 | 51.3 | 44.5 | WSW | | | | | | | | | | | Cloudy. | | 12 | 29.644 | 47.0 | 29.529 | 49.8 | 46 | 44.0 | 48.9 | 42.0 | SW | | | | | | | | | | | Overcast and hazy. | | 13 | 29.452 | 43.1 | 29.204 | 47.7 | 41 | 39.0 | 45.7 | 35.1 | SW | | | | | | | | | | | Overcast and foggy. | | 14 | 29.083 | 44.8 | 29.145 | 46.0 | 39 | 39.7 | 43.2 | 38.4 | NNE | | | | | | | | | | | Overcast and cloudy. | | 15 | 29.594 | 43.7 | 29.697 | 45.7 | 39 | 39.3 | 44.1 | 37.8 | NW | | | | | | | | | | | Nearly cloudless. | | 16 | 29.683 | 41.0 | 29.988 | 44.0 | 34 | 33.8 | 41.2 | 31.7 | SW | | | | | | | | | | | Clear and cloudless. | | 17 | 29.908 | 46.5 | 29.983 | 47.8 | 45 | 45.0 | 45.0 | 38.4 | ESE | | | | | | | | | | | Overcast and lowering. | | 18 | 30.152 | 45.1 | 30.114 | 46.5 | 42 | 43.8 | 45.2 | 38.2 | NNE | | | | | | | | | | | Overcast and foggy. | | 19 | 30.172 | 47.0 | 30.186 | 47.8 | 43 | 45.0 | 45.0 | 44.4 | NNE | | | | | | | | | | | Overcast and gloomy. Showery. | | 20 | 30.381 | 46.3 | 30.420 | 47.6 | 43 | 43.9 | 45.5 | 43.1 | N by E | | | | | | | | | | | Overcast, gloomy, and foggy. | | 21 | 30.503 | 45.9 | 30.468 | 47.0 | 34 | 43.8 | 44.2 | 41.9 | NE by N | | | | | | | | | | | Partially overcast—faint haze. | | 22 | 30.433 | 45.0 | 30.358 | 46.8 | 37 | 41.8 | 44.2 | 40.0 | N by W | | | | | | | | | | | Cloudy—dense fog. | | 23 | 30.114 | 46.3 | — | — | 41 | 43.8 | — | 42.6 | SW | | | | | | | | | | | Cloudy—dense white fog. | | 24 | 29.519 | 48.0 | 29.404 | 48.7 | 43 | 42.6 | 43.0 | 42.6 | SW | | | | | | | | | | | Fine—light clouds and haze. | | 25 | 29.156 | 43.0 | 29.142 | 44.3 | 30 | 34.8 | 38.3 | 31.7 | SW | | | | | | | | | | | A. M. clear and cloudless—brisk wind. | | 26 | 29.313 | 38.8 | 29.361 | 39.9 | 24 | 27.2 | 33.9 | 26.8 | SW | | | | | | | | | | | P. M. overcast. | | 27 | 29.681 | 37.2 | 29.768 | 38.9 | 28 | 30.6 | 35.6 | 29.5 | WSW | | | | | | | | | | | A. M. strong white fog and hoar frost. | | 28 | 29.790 | 37.6 | 29.648 | 40.2 | 36 | 36.0 | 43.2 | 30.8 | W | | | | | | | | | | | A. M. white fog, P. M. fine and cloudless | | 29 | 29.384 | 43.2 | 29.345 | 46.7 | 44 | 46.5 | 40.8 | 43.5 | SW by S | | | | | | | | | | | Overcast and gloomy. Continued rain. | | 30 | 29.371 | 46.2 | 29.417 | 47.8 | 45 | 44.2 | 45.7 | 41.9 | SSE | | | | | | | | | | | Cloudy. Showery. | | | | | | | | | | | Cloudy and foggy. | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. \[ \begin{align*} \text{Mean} & = 29.820 \\ \text{Mean} & = 44.5 \\ \text{Mean} & = 29.781 \\ \text{Mean} & = 46.0 \\ \text{Mean} & = 39.5 \\ \text{Mean} & = 40.8 \\ \text{Mean} & = 44.2 \\ \text{Mean} & = 38.3 \\ \text{Mean} & = 45.5 \\ \text{Sum} & = 0.457 \\ \end{align*} \] OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge........ = 83 ft. 2\(\frac{1}{4}\) in. ......................... above the mean level of the Sea (presumed about) = 95 ft. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gage above the Court of Somerset House ........ = 79 ft. 0 in. The hours of observation are of Mean Time—the day beginning at Midnight. The Thermometers are graduated by Fahrenheit’s Scale. The Barometer is divided into inches and decimals. | 1826. December | 9 o'Clock, A. M. Barom. | Attached Thermometer. | 3 o'Clock, P. M. Barom. | Attached Thermometer. | 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 | |---------------|------------------------|----------------------|------------------------|----------------------|---------------------------------|---------------------|-----------------------------|---------------------------|----------| | | | | | | | | | | | | 1 | 29.492 | 44.2 | 29.316 | 45.8 | 39 | 38.8 | 41.8 | 35.6 | SW | | 2 | 29.166 | 42.0 | 29.108 | 46.3 | 41 | 40.5 | 45.0 | 40.5 | SW | | 3 | 29.452 | 44.0 | 29.389 | 45.3 | 39 | 38.5 | 40.8 | 37.5 | W | | 4 | 29.419 | 41.1 | 29.544 | 42.3 | 36 | 35.9 | 37.8 | 32.8 | WNW | | 5 | 29.732 | 41.0 | 29.675 | 41.3 | 38 | 38.3 | 37.3 | 35.0 | WNW | | 6 | 29.695 | 40.0 | 29.742 | 41.8 | 38 | 36.4 | 41.7 | 34.0 | ESE | | 7 | 29.625 | 46.1 | 29.517 | 49.0 | 48 | 50.8 | 52.2 | 42.0 | SW | | 8 | 29.294 | 51.0 | 29.391 | 52.6 | 48 | 49.0 | 50.5 | 47.2 | SW | | 9 | 29.893 | 49.2 | 29.893 | 50.2 | 41 | 41.2 | 45.0 | 40.5 | SW | | 10 | 29.893 | 51.0 | 29.877 | 53.5 | 50 | 51.0 | 52.5 | 45.5 | WSW | | 11 | 29.871 | 52.5 | 29.887 | 54.0 | 50 | 51.0 | 51.0 | 49.0 | S | | 12 | 29.881 | 52.0 | 29.685 | 52.0 | 49 | 49.5 | 50.0 | 46.0 | SSW | | 13 | 29.540 | 51.5 | 29.540 | 53.0 | 47 | 48.0 | 49.0 | 47.8 | S | | 14 | 29.623 | 50.0 | 29.609 | 51.4 | 47 | 45.0 | 47.5 | 43.0 | SSW | | 15 | 29.657 | 50.3 | 29.602 | 50.8 | 46 | 45.8 | 46.8 | 44.0 | S by W | | 16 | 29.592 | 50.0 | 29.637 | 50.8 | 47 | 46.7 | 47.6 | 45.0 | E | | 17 | 29.861 | 48.8 | 29.907 | 48.8 | 45 | 44.0 | 43.5 | 44.0 | NE | | 18 | 29.999 | 46.2 | 29.994 | 46.3 | 50 | 41.0 | 41.8 | 40.8 | NNE | | 19 | 30.078 | 45.2 | 30.050 | 45.7 | 35 | 40.8 | 41.2 | 40.2 | NNE | | 20 | 29.902 | 45.0 | 29.712 | 46.1 | 41 | 40.9 | 40.0 | 39.3 | SSE | | 21 | 29.681 | 44.2 | 29.852 | 44.5 | 38 | 39.2 | 40.8 | 38.0 | WNW | | 22 | 30.276 | 41.4 | 30.230 | 42.8 | 30 | 33.4 | 39.9 | 32.2 | WNW | | 23 | 30.253 | 44.2 | 30.242 | 45.8 | 43 | 44.1 | 47.0 | 40.1 | WSW | | 24 | 30.305 | 47.0 | 30.301 | 47.3 | 46 | 45.8 | 45.0 | 45.8 | NNW | | 25 | 30.354 | 47.0 | 30.355 | 47.0 | 44 | 44.3 | 45.1 | 44.3 | N by E | | 26 | 30.449 | 46.8 | 30.464 | 46.8 | 43 | 42.5 | 42.4 | 42.0 | NE | | 27 | 30.550 | 45.8 | 30.535 | 46.4 | 41 | 41.2 | 42.8 | 40.3 | NNE | | 28 | 30.571 | 43.2 | 30.564 | 43.4 | 37 | 36.6 | 38.3 | 36.4 | N by E | | 29 | 30.419 | 43.0 | 30.297 | 44.0 | 38 | 40.0 | 44.0 | 33.0 | WNW | | 30 | 30.206 | 45.5 | 30.172 | 47.0 | 42 | 45.5 | 48.0 | 43.0 | NNW | | 31 | 30.229 | 46.0 | 30.180 | 47.5 | 44 | 45.0 | 48.0 | 41.0 | W | Monthly Mean of the Barometer, corrected for Capillarity and reduced to 32° Fahr. \[ \{ 9 \text{ A. M.} \quad 3 \text{ P. M.} \} \] \[ \begin{align*} \text{Mean} & = 29.902 \\ \text{Mean} & = 46.3 \\ \text{Mean} & = 29.879 \\ \text{Mean} & = 47.4 \\ \text{Mean} & = 42.6 \\ \text{Mean} & = 42.9 \\ \text{Mean} & = 44.6 \\ \text{Mean} & = 40.8 \\ \text{Mean} & = 45.7 \\ \text{Sum} & = 0.099 \end{align*} \] OBSERVANDA. Height of the Cistern of the Barometer above a Fixed Mark on Waterloo Bridge \(= 83\) ft. \(2\frac{1}{2}\) in. Above the mean level of the Sea (presumed about) \(= 95\) ft. The External Thermometer is 2 feet higher than the Barometer Cistern. Height of the Receiver of the Rain Gage above the Court of Somerset House \(= 79\) ft. 0 in. The hours of observation are of Mean Time—the day beginning at Midnight. The Thermometers are graduated by Fahrenheit’s Scale. The Barometer is divided into inches and decimals.