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 Friern Barnet]
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Meteorogy.
| Month | Temperature of Air | Mean Temperature of Air, | Rain | Prevailing Wind. | ||||
|---|---|---|---|---|---|---|---|---|
| Highest. | Lowest. | Mean. | NO. of Wet Days. | Amount Collected. | ||||
| of all i Highest. | of al1 Lowest. | |||||||
| Deg. | Deg. | Deg. | Deg. | Degrees. | Ins, | |||
| January | 53 | 13 | 39.55 | 30.25 | 34.90 | 14 | 1.66 | S W |
| February | 53 | 21 | 42.75 | 30.57 | 36.66 | 25 | 2.50 | S W |
| March | 53 | 20 | 46.44 | 28.00 | 37.22 | 9 | .96 | N E |
| April | 63 | 17 | 51.52 | 34.80 | 43.16 | 3.12 | S W | |
| May | 77 | 24 | 59.33 | 40.29 | 49.81 | 18 | 2.09 | NE |
| June | 82 | 40 | 69.40 | 48.30 | 58.85 | 12 | 2.67 | S W |
| July | 77 | 44 | 65.71 | 49.93 | 57.82 | 17 | 1.89 | S W |
| August | 74 | 45 | 68.40 | 50.82 | 59.61 | 19 | 2.58 | S W |
| September | 73 | 33 | 63.30 | 45.70 | 54.50 | 5 | .54 | N E |
| October | 70 | 33 | 57.39 | 45.13 | 51.26 | 16 | 2.24 | N W |
| November | 53 | 14 | 42.86 | 32.26 | 37.56 | 18 | 3.19 | S W |
| December | 51 | 22 | 45.00 | 37.00 | 41.00 | 23 | 3.62 | Amount Collected |
| 54.30 | 39.42 | 46.86 | 194 | 27.06 | ||||
| 2.255 | ||||||||
| Mean of all Highest | Mean of all Lowest | Mean Temperature of Air. | No. Of Wet Days. | average per month | ||||