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 Harrow-on-the-Hill]
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METEOROLOGICAL OBSERVATIONS
TAKEN AT HARROW DURING THE YEAR ENDING DECEMBER 31st, 1918.
By J. PERCY BENNETRS, Engineer and Surveyor.
Month. | Hygrometer. | Max. | Temperature. | Total Depth | Rainfall | Wind | |||||
---|---|---|---|---|---|---|---|---|---|---|---|
Dry Bulb | Wet Bulb | Min. | Earth | Greatest Fall in 24 Hours | No. of Days on which .01 or more fell | Prealling Wind | |||||
1 ft. | 4 ft. | Depth | Date | ||||||||
January. | |||||||||||
Means | 37 00 | 36.58 | 44.00 | 32.83 | 37.19 | 42.00 | ... | ... | ... | ... | ... |
Highest | 50.00 | 49.00 | 55.00 | 46.00 | 43.00 | 43.00 | 2.79 | 1.20 | 15 | 14 | s.w. |
Lowest ... | 21.00 | 21.00 | 23.00 | 16.00 | 34.00 | 41.00 | ... | ... | ... | ... | |
February. | |||||||||||
Means . . | 41.00 | 40.00 | 47.32 | 37.25 | 41.57 | 43.32 | ... | ... | ... | ... | ... |
Highest | 51.00 | 49.00 | 56.00 | 48.00 | 45.00 | 44.00 | l.20 | .21 | 24 | 15 | s.w. |
Lowest | 27.00 | 27.00 | 36.00 | 24.00 | 38.00 | 41.00 | ... | ... | ... | ... | |
March | |||||||||||
Means......... | 37.29 | 38.90 | 51.54 | 35.16 | 41.25 | 43.25 | ... | ... | ... | ... | ... |
Highest ... | 50.00 | 46.00 | 71.00 | 43.00 | 44.00 | 44.00 | .42 | .25 | 28 | 4 | s.w. |
Lowest ...... | 32.00 | 32.00 | 39.00 | 28.00 | 39.00 | 43.00 | ... | ... | ... | ... | ... |
April. | |||||||||||
Means......... | 41.20 | 40.17 | 51.60 | 37.17 | 44.14 | 44.24 | ... | ... | ... | ... | ... |
H ighest | 47.00 | 46.00 | 64.00 | 48.00 | 17.00 | 45.00 | 3.65 | .87 | 15 | 18 | N E. |
Lowest ... . | 31.00 | 31.00 | 42.00 | 30.00 | 42.00 | 44.00 | ... | ... | ... | ... | ... |
May. | |||||||||||
Means......... | 54.70 | 51.29 | 66.16 | 47.00 | 52.38 | 48.35 | ... | ... | ... | ... | s.e. |
Highest ...... | 67.00 | 60.00 | 83.00 | 58.00 | 57.00 | 57.03 | 1.97 | .48 | 4 | 11 | & |
Lowest | 43.00 | 41.00 | 48.00 | 39.00 | 46.00 | 45.00 | ... | ... | ... | ... | N E. |
Junk. | |||||||||||
Means......... | 56.18 | 53.21 | 67.17 | 47.00 | 58.28 | 53.70 | ... | ... | 18 | ... | ... |
Highest | 64. 00 | 63.00 | 79.00 | 53.00 | 59.00 | 51.00 | 1.11 | .20 | 11 | w. | |
Lowest , | 51.00 | 47.00 | 60.00 | 38.00 | 56.00 | 51.00 | ... | ... | 20 | ... | ... |
July. | |||||||||||
Means....... | 50.15 | 56.40 | 70.40 | 53.14 | 59.93 | 55.61 | ... | ... | ... | ... | ... |
Highest | 66.00 | 68.00 | 79.00 | 66.00 | 64.00 | 57.00 | 3.38 | 56 | 26 | 19 | s.w. |
Lowest . . | 52.00 | 51.00 | 61.00 | 45.00 | 57.00 | 54.00 | ... | ... | ... | ... | ... |
August. | |||||||||||
Means...... | 59.67 | 57.90 | 70.00 | 53.19 | 61.38 | 58.00 | ... | ... | ... | ... | ... |
Highest | 70.00 | 65.00 | 88.00 | 31.00 | 63.00 | 59.00 | 1.36 | .22 | 27 | 14 | S w. |
Lowest ..... | 50.00 | 52.00 | 59.00 | 45.00 | 59.00 | 57.00 | ... | ... | ... | ... |