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 1930
[Report of the Medical Officer of Health for Croydon]
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Table I.
METEOROLOGICAL RECORD—YEAR 1930 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.
I am indebted to Mr. H. W. Corden for the information contained in the tables below.
| Months 1930. | Temperature of Air during 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 Tenfional Difference between Ground and Dew Point at 9 a.m. and 3 p.m. | Rainfall. | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Highest. | Lowest. | Meat) of | No. of Days on which Rain fell. | Amount collected in Inches. | Difference from average 50 years at Greenwich | |||||||
| All Highest. | All Lowest. | |||||||||||
| January | 57° | 80° | 4S°.2 | 39° .7 | 43°. 9 | + 5° 4 | 44°.2 | 40°.6 | in. — 035 | 21 | in. 3.08 | in. + 1.29 |
| February | 53° | 29° | 42°.8 | 34°.9 | 38°.8 | — 0°.7 | 43°.5 | 34°.7 | — .079 | 7 | 0.84 | - 0.69 |
| March | 60° | 26° | 50°.9 | 36°.8 | 43°.8 | + 2°.1 | 43°.2 | 38°.8 | — .040 | 9 | 1.48 | — 0.03 |
| April | 70° | 30° | 55°.6 | 41°.7 | 48°.6 | + 1°.4 | 45°. 5 | 43°.2 | — .021 | 16 | 1.74 | + 0.14 |
| May | 71° | 39° | 61. 2 | 47°.1 | 54° .1 | + 1°.0 | 49°.1 | 47°.9 | — .013 | 19 | 3.00 | + 1.12 |
| June | 80° | 46° | 70°.9 | 53°.7 | 62°.3 | + 2°.8 | 54°.4 | 54°.1 | — .011 | 5 | 0.33 | — 1.70 |
| July | 81° | 49° | 69°. 4 | 55°.3 | 62°.30 | — 0°.2 | 57°.1 | 54°.2 | — .045 | 12 | 1.16 | — 1.25 |
| August | 94° | 49° | 71°.9 | 56°.1 | 64°.0 | + 2°.4 | 58°.0 | 56°.3 | — .025 | 16 | 1.55 | - 0.83 |
| September | 80° | 46° | 66°.2 | 53.5 | 59°.8 | + 2°.6 | 58°.8 | 54°.5 | — .069 | 18 | 3.29 | + 1.09 |
| October | 69° | 30° | 59°.3 | 45°.7 | 52°.5 | + 2°.5 | 55°.1 | 49°.3 | — .079 | 16 | 1.25 | — 1.48 |
| November | 58° | 22° | 60°.6 | 38°.7 | 44°.6 | + 1°.4 | 50°.7 | 42°.0 | — .095 | 18 | 5.15 | + 2.86 |
| December | 52° | 28° | 44°.5 | 36°.4 | 40°.4 | + 0°.7 | 46°.9 | 38°.4 | — .087 | 14 | 2.13 | + 0.19 |
| Means and Totals | 94° | 22° | 57°.6 | 44°.9 | 51°.2 | + 1°.8 | 50°.5 | 46°.1 | — .049 | 171 | 25.00 | + 0.71 |