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
Lewisham 1961
[Report of the Medical Officer of Health for Lewisham Borough]
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Atmospheric Conditions Table
| January | February | March | April | May | |
|---|---|---|---|---|---|
| Temperature— | |||||
| Mean maximum1 °C | 6.6 | 10.2 | 13.1 | 14.4 | 16.1 |
| Mean minimum1 ... ... °C | 2.8 | 6.1 | 4.4 | 7.8 | 8.3 |
| Mean1 °C | 4.7 | 8.1 | 8.7 | 11.1 | 12.2 |
| Diff. from average1 nC | -0.1 | + 3.2 | +2.0 | + 1.8 | -0.3 |
| Highest maximum1 °C | 10 | 16 | 20 | 20 | 24 |
| Lowest minimum2 °C | —2 | —3 | 0 | 5 | 4 |
| Rainfall— | |||||
| Total2 in. | 1. 96 | 1 .85 | 0. 04 | 1.69 | 1.73 |
| Percent of average1 | 52 | ||||
| Sunshine1 | |||||
| Daily mean hrs. | 1 .73 | 2.36 | 5 53 | 3.39 | 7 .50 |
| Percent of average | |||||
| Wind' NE/E/SE % | |||||
| s/sw/w % | |||||
| NW/N/Calm % | 39 | ||||
| Atmospheric pollution— West Division3 : | |||||
| Water insol. matter tpm Water sol. matter tpm | 9.94 3 .71 | 8 .98 5.41 | 7.37 2.92 | 10.34 6 .14 | 12.07 525 |
| Sulphur | 1.94 | 2.07 | 1 .54 | 1.22 | 0.78 3.0 |
| Smoke, daily average | 16.0 | 9.0 | 15.0 | ||
| „ maximum | 35.0 | 19.0 | 28.0 | 11.0 | 60 |
| (date) ......... | (23.24) | (11-12) | |||
| „ minimum | 4.0 | 3.0 | 5.0 | 2.0 | |
| (date) | (30) | (2-8) | |||
| . . | |||||
| Water insol. matter tpm | 9 .74 | 6.56 | 9.60 | 11.42 | 10.78 |
| Water sol. matter ... tpm | 4 .31 | 6.63 | 3 .28 | 7.45 | 55.28 |
| Sulphur | 3.25 | 2.74 | 2.76 | 2.01 | 1.79 |
| Smoke, daily average | 12.0 | 9.0 | 12.0 | 5.5 | 3.0 |
| „ maximum | 37.0 | 20.0 | 26.0 | 13. 0 | 7.0 (12) |
| (date) | |||||
| minimum | 5.0 | 5.0 | |||
| (date) | (7) | (2) | |||
| JUULII Wlr IjIWII . Water insol. matter tpm | 11 .04 | 8.30 | 7.64 | 10.16 | 9 51 4..23 |
| Water sol. matter tpm | 3.75 | 6.08 | 3.53 | 5.6 | 0.95 |
| Sulphur | 1.07 | 1.11 | 1.11 | 0.76 | U. 2.0 |
| Smoke, daily average | 7.0 | 6.0 | 7.0 | 4.0 | |
| lt maximum | 29.0 | 13.0 | 17.0 | 7.0 | 4.0 |
| (date) | (23) | (8) | |||
| minimum | 3.0 | 3.0 | 2.0 | 1.0 | |
| (date) | (6) | (9) | |||
| Weather summary | Changeable | Very mild, moist | Mild, very dry | Mild, dull and moist | Dry, late frosts |
| Notes : 'Kew ; ;Lewisham ; 'Valentine Court for smoke, Pool allotments for others, tpm : tons per square mile per month ; †as trioxide in mg per 100 sq. cms. per day | |||||