Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Wandsworth District, The Board of Works (Clapham, Putney, Streatham, Tooting & Wandsworth)]
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TABLE VII.
METEOROLOGICAL TABLE EOR LONDON, 1881.
Winter . . Jan., Feb., March. Spring . . April, May, June. Summer . . July, Aug., Sept. Autumn . . Oct., Nov., Deo. | Temperature of | Elastic Force of Vapour. | Weight of Vapour in a Cubic Foot of Air. | Degree of Humidity. | Reading of Barometer. | Weight of a Cubic Foot of Air. | Rain. | Reading of Thermometer on Grass. | ||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Air. | Evaporation. | Dew Point. | AirDaily flange. | Number of Nights it was | Lowest Reading at Night. | Highest Reading at Night. | ||||||||||||||||||||
Mean. | Diff. from Average of 110 years. | Diff. from Average of 40 years. | Mean. | Diff. from Average of 40 years. | Mean. | Diff. from Average of 40 years. | Mean. | Diff. from Average of 40 years. | Mean. | Diff. from Average of 40 years. | Mean. | Diff. from Average of 40 years. | Mean (Sat.=100). | Diff. from Average of 40 years. | Mean. | Diff. from Average of 40 years. | Mean. | Diff. from Average of 40 years. | Mean. | Diff. from Average of 40 years. | At or below 30°. | Between 30° and 40°. | Above 40°. | |||
1881. | o | o | o | o | o | o | o | o | o | in. | in. | grs. | gr. | in. | in. | grs. | grs. | Sum in. | in. | Sums. | o | o | ||||
YEAR. | 48.7 | +0.2 | —0.7 | 46.0 | —0.6 | 43.0 | —0.6 | 15.4 | —0.5 | 0.291 | —0.004 | 3.3 | —0.05 | 81 | —1 | 29.778 | +0.005 | 543 | + 1 | 25.24 | —0.02 | 116 | 111 | 138 | 10.2 | 58.1 |
First Quarter | 37.3 | —1.4 | —2.6 | 35.6 | -2.4 | 33.0 | —2.4 | 111 | —0.7 | 0.170 | —0.018 | 2.2 | —0.2 | 84 | —1 | 29.700 | —0.067 | 554 | + 2 | 5.43 | + 0.42 | 60 | 25 | 5 | 10.2 | 47.2 |
Second do. | 52.9 | + 0.6 | 0.0 | 48.5 | —0.6 | 44.1 | —1.3 | 20.3 | +0.4 | 0.294 | —0.013 | 33 | —0.1 | 72 | —4 | 29.836 | + 0.053 | 539 | + 1 | 4.10 | —1.64 | 20 | 32 | 39 | 21.9 | 55.3 |
Third do. | 60.0 | +0.3 | —0.3 | 57.0 | +0.3 | 53.8 | +0.8 | 18.9 | —0.8 | 0.419 | +0.013 | 4.6 | +0.1 | 79 | +2 | 29.767 | —0.028 | 530 | + 1 | 8.19 | + 0.75 | 1 | 13 | 78 | 31.7 | 58.1 |
Fourth do. | 446 | +1.2 | +0.1 | 43.0 | +0.4 | 41.0 | +0.4 | 11.2 | —0.7 | 0.260 | +0.001 | 3.0 | 0.0 | 88 | 0 | 29.811 | +0.062 | 547 | + 1 | 7.52 | + 0.3 | 35 | 41 | 16 | 17.2 | 47.8 |
In this Table, + and — respectively signify that the numbers in the preceding column are above or below the average to the extent of the quantities to which these signs are prefixed.