London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Croydon 1917
[Report of the Medical Officer of Health for Croydon]
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Rain Gauge 5-in. in diameter, 1-ft. above ground, 146-ft. above sea level. Temperature taken in the shade of a Stevenson's Screen, 4-ft. from the ground. The Ground Thermometer is suspended in an iron tube, the
bulb being 4-ft.
| Months. | Temperature of Air during the Month. | Mean Temperature of Air. | . Difference from average 50 years at Greenwich. | Mean Temperature of Ground at 4-ft. | Mean Temperature of the Dew Point. | Mean Tensiona! Difference between Ground and Dew Point at 9 a.m. and 3 p.m. | Rainfall. | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Highest. | Lowest. | Mean of | No. of Days on which Rain fell. | Amount collected in Inches. | Difference from average 90 years at Greenwich | |||||||
| All Highest. | All Lowest. | |||||||||||
| January | 54° | 22° | 38°.1 | 33°.4 | 35° .7 | -2°.8 | 41°. 8 | 33°.3 | in. - .075 | 17 | in. 1.20 | in. .-59 |
| February | 48° | 9° | 41°. 2 | 31°.0 | 36°.1 | -3°.4 | 38°. 5 | 34°.6 | -.033 | 10 | 0.79 | -.74 |
| March | 58° | 19° | 44°.1 | 32°.8 | 38°.4 | -3°.3 | 40°.5 | 36°.0 | -.040 | 17 | 1.60 | + .09 |
| April | 63° | 27 0 | 48°.8 | 330.4 | 41°.1 | -6°.1 | 40°.8 | 38°.7 | -.020 | 15 | 2.22 | + .62 |
| May | 81° | 38° | 68°.7 | 47°.3 | 58°.0 | + 4°.9 | 48°.8 | 52°.8 | + .055 | 7 | 1.86 | -.01 |
| June | 92° | 46° | 75°.1 | 52°.9 | 64°.0 | + 4°.6 | 57°.0 | 54°.7 | -.037 | 8 | 1.95 | -.08 |
| July | 82° | 47° | 71°.7 | 53°.7 | 62°.7 | + 0°.2 | 58°. 5 | 55°.9 | -.044 | 14 | 5.50 | + 3.09 |
| August .. | 78° | 50° | 69°.7 | 55°.2 | 62°.4 | + 0°.8 | 58°.8 | 56°.8 | -.042 | 23 | 5.06 | + 2.68 |
| September | 74° | 42° | 67°.6 | 51°.7 | 59°.6 | + 2°.4 | 56°.9 | 55°.4 | -.025 | 12 | 2.33 | + .13 |
| October . . | 71° | 26° | 55°.8 | 40°.0 | 47°.9 | -2°.1 | 52°.6 | 45°.4 | -.093 | 22 | 3.36 | + .63 |
| November | 60° | 30° | 50°.8 | 40°.8 | 45°.8 | + 2°.6 | 47°.9 | 44°.0 | -.046 | 14 | 1.52 | -.77 |
| December | 54° | 15° | 40°.2 | 30°.2 | 35°.2 | -4°. 5 | 44°.5 | 32°.4 | -.110 | 11 | 1.82 | -.12 |
| Means and Totals for the Year. | *92° | †9° | 56°.0 | 41°.9 | 48°.9 | -0°.6 | 48°.9 | 45°.0 | -0.047 | 170 | 29.21 | + 4.93 |
* June 17th. † February 7th.
The Rainfall for the Year was 3.11 inches above the aveiage of 50 years at Croydon, and the number of days on which
rain fell was 7 above the average. GEO. CORDEN, F.R. Met. Soc.,
Croydon.