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 Lewisham Borough]
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Table 20 gives a record of the principal results from six stations and also are not specific to the borough, having been obtained from a publication of the m
Atmospheric Condition
January | February | March | April | |||
---|---|---|---|---|---|---|
Temperature— | ||||||
Mean maximum1 | °F | 43.4 | 46.8 | 45.3 | 52.9 | 62.3 |
Mean minimum1 | °F | 35.5 | 38.3 | 34.0 | 38.8 | 46.5 |
Mean1 | °F | 39.5 | 42.5 | 39.7 | 45.9 | 54.5 |
Diff. from average1 | °F | -0.6 | + 2.1 | -4.0 | -2.3 | +0.7 |
Highest maximum2 | °F | 55 | 60 | 60 | 72 | 78 |
Lowest minimum1 | °F | 25 | 29 | 26 | 29 | 41 |
Rainfall— | ||||||
Total2 | in. | 1.3 | 1.8 | 1.1 | 1.4 | 1.7 |
Percent of average1 | ... | 81 | 14l | 94 | 87 | 120 |
Sunshine1 | ||||||
Daily mean | hrs. | 1.2 | 1.4 | 3.4 | 4.7 | 6.9 |
Percent of average | ... | 79 | 61 | 89 | 96 | 108 |
Wind1 | ||||||
NE/E/SE | % | 30 | ||||
S/SW/W | % | |||||
NW/N/Calm | % | |||||
Atmospheric pollution— | ||||||
West Division3: | ||||||
Water insol. matter | tpm | 5.2 | 7.8 | 7.7 | 9.4 | 7.5 |
Water sol. matter | tpm | 3.9 | 7.5 | 6.5 | 5.3 | |
Sulphur | + | 2.4 | 2.6 | 3.3 | 1.7 | 1.4 |
Smoke, daily average | * | 21 5 | 12.6 | 16.5 | 10 7 | 2.7 |
„ maximum | * | 49.3 | 20.8 | 27.7 | 16.0 | 6.3 |
(date) | ... | (1.4) | (1.2) | |||
„ minimum | * | 9.6 | 7.5 | 7.8 | 3.6 | 1.0 |
(date) | ... | (8./0) | (5.7) | (10.13) | ||
Water insol. matter | tpm | 6.1 | 9.1 | 9.8 | 11.2 | 5.3 |
Water sol. matter | tpm | 5.1 | 5.4 | 8.6 | 5.8 | |
Sulphur | t | 3.9 | 3.4 | 3.3 | 3.2 | 1.5 |
Smoke, daily average | * | 21 .2 | 14.3 | 14.9 | 10.1 | 3.3 |
„ maximum | * | 44.3 | 23.0 | 30.7 | 13 8 | 6.5 |
(date) | ... | (1.2) | ||||
„ minimum | * | 11.9 | 9.2 | 9.7 | 5.1 | 1.6 |
(date) | ... | (10.13) | ||||
Water insol. matter | tpm | 6.5 | 9.6 | 10.6 | 11.2 | 6.8 |
Water sol. matter | tpm | 5.7 | 6.6 | 7.6 | 5.3 | 4.3 |
Sulphur ... | t | 1.7 | 1.4 | 2.0 | 1.2 | 0.4 |
Smoke, daily average | * | 19.1 | 14.2 | 14 5 | 10.6 | 2.6 |
„ maximum | * | 40.8 | 18.2 | 24 1 | 18.2 | |
(date) | ... | (5.7) | (1.2) | |||
„ minimum | * | 9.8 | 7.9 | 9.5 | 3.7 | 1.2 |
(date) | ... | (10.25) | ||||
Weather summary | Changeable ; rather dull | Changeable: wet, dull | Very cold | Cold at first, then warm |
Notes : 'Croydon; 2Lewisham ; :,Valentine Court for smoke, Pool allotments for others
tpm : tons per square mile per month ; +as trioxide in mg per 100 sq. cms. per