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
Harrow 1920
[Report of the Medical Officer of Health for Harrow-on-the-Hill]
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METEOROLOGICAL OBSERVATIONS
TAKEN AT HARROW DURING THE YEAR ENDING DECEMBER 31st, 1920.
By J PERCY BENNETTS, Engineer and Surveyor.
| Month | Hygrometer. | Temperature. | Rainfall | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Dry Bulb | Wet Bulb | Max. | Min. | Earth | Total Depth | Greatest Fall in 24 Honrs | No. of Days on which .01 or more fell | |||
| 1 ft. | 4 ft. | Depth | Date | |||||||
| January. | ||||||||||
| Means | 40 61 | 39.54 | 47.58 | 35.19 | 41.32 | 44.35 | ||||
| Highest | 52.00 | 51.00 | 56.00 | 47.00 | 4500 | 45.00 | 2.71 | .46 | 28 | 19 |
| Lowest | 21.00 | 21.00 | 38.00 | 21 00 | 37.00 | 44.00 | ... | ... | .... | ... |
| February. | ||||||||||
| Means | 40.03 | 38.96 | 49.37 | 34.89 | 41.5??? | 13.08 | ... | ... | ... | ... |
| Highest | 48.00 | 47.00 | 58.00 | 41.00 | 43.00 | 44.00 | .47 | .08 | 3 | 11 |
| Lowest | 30.00 | 30.00 | 44.00 | 28.00 | 40.00 | 43.00 | ... | ... | ... | ... |
| March | ||||||||||
| Means | 43.27 | 41.93 | 53.70 | 37.12 | 43.03 | 44.12 | ... | ... | ... | ... |
| Highest | 54 00 | 52.00 | 64.00 | 51.00 | 48.00 | 45.00 | 1.54 | .25 | 14 | 15 |
| Lowest | 30.00 | 30.00 | 40.00 | 26.00 | 40.00 | 44.00 | ... | ... | ... | ... |
| April. | ||||||||||
| Means | 4663 | 41.96 | 34.02 | 42.05 | 47.86 | 16.30 | ... | ... | ... | ... |
| Highest | 58.00 | 50.00 | 64.00 | 59.00 | 50.00 | 48.00 | 3.21 | .49 | 1 | 20 |
| Lowest | 37.00 | 36.00 | 47.00 | 33.00 | 43.00 | 45.00 | ... | ... | ... | |
| May. | ||||||||||
| Means | 53.90 | 50.45 | 64.16 | 46.58 | 52.35 | 49.19 | ... | ... | ... | ... |
| Highest | 65.00 | 62.00 | 80110 | 59 0(1 | 60 00 | 52.0 | 90 | .17 | 6 | 12 |
| Lowest | 43.00 | 40.00 | 52.00 | 35.00 | 18.00 | 48.00 | ... | ... | ... | ... |
| June. | ||||||||||
| Means | 5816 | 54.07 | 68.56 | 51.23 | 58.09 | 5.207 | ... | ... | ... | ... |
| Highest | 6900 | 68.00 | 76.00 | 59.00 | 62.09 | 56.00 | 2.14 | 1.01 | 12 | 10 |
| Lowest | 40.00 | 42.00 | 58.00 | 33.00 | 51.00 | 85.00 | ... | ... | ... | ... |
| July. | ||||||||||
| Means | 57.41 | 55.80 | 66.54 | 51.70 | 59.61 | 57.38 | ... | ... | ... | ... |
| Highest | 62.00 | 62.00 | 73.00 | 60.00 | 62.00 | 58.01 | 5.06 | 1.07 | 23 | 19 |
| Lowest | 50.00 | 49.00 | 56.00 | 44.00 | 57.00 | 57.00 | ... | ... | ... | ... |
| August. | ||||||||||
| Means | 55.45 | 53.96 | 05.35 | 49.29 | 57.90 | 56.93 | ... | ... | ... | ... |
| Highest | 61.00 | 59.00 | 74.00 | 56.00 | 60.00 | 58.50 | 1.75 | 85 | 2 | ... |
| Lowest | 48.00 | 46.00 | 59.00 | 41.00 | 55.00 | 51..00 | ... | ... | ... | ... |