[Report of the Medical Officer of Health for Leyton] page 12

Leyton 1933

[Report of the Medical Officer of Health for Leyton]

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Table: TABLE 1.—METEOROLOGICAL TABLE FOR LONDON 1933.(Deduced from Observations at Greenwich, under the Superintendence of the Astronomer Royal.)

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TABLE 1.—METEOROLOGICAL TABLE FOR LONDON 1933.

(Deduced from Observations at Greenwich, under the Superintendence of the Astronomer Royal.)

1933.	Barometer.	Air Temperature.								Hygrometer.				Earth Temperature.		Bright Sunshine.
	Mean Pressure at Station Level. 152 ft.* (Average Correction to Sea Level + 5.6 mb.)	Mean of		Mean of A and B	Difference from Normal.†	Absolute Maximum and Minimum.				Mean of Observations at 9 a.m. and 9 p.m.				At 1 foot depth.	At 4 feet depth.	Daily Mean.	Difference from NormaL†	Per cent. of Possible.
		Maximum. A	Minimum. B	Mean of A and B	Difference from Normal.†	Maximum.	Day of Month.	Minimum.	Day of Month.	Dry Bulb.	Depression of Wet bulb.	Vapour Pressure.	Humidity.	At 1 foot depth.	At 4 feet depth.	Daily Mean.	Difference from NormaL†	Per cent. of Possible.
	mb.	°F.	°F	°F.	°F.	°F.		°F.		°F.	°F.	mb.	%	°F.	°F.	hr.	hr.
January	1016.3	41.6	32.2	36.9	-1.6	53	3	20	23	36.7	1.3	6.7	87	41.2	44.9	1.10	-0.14	13
February	1011.0	46.3	35.3	40.8	+ 1.0	57	5	22	24	40.0	1.9	7.2	83	39.6	43.0	1.55	—0.49	16
March	1010.2	55.7	36.1	45.9	+ 3.4	66	29	26	26	44.7	2.5	8.1	81	43.4	43.8	5.41	+ 2.01	46
April	1016.3	60.1	39.9	50.0	+ 2.4	73	8	31	19.23	49.3	3.9	8.8	72	47.5	46.5	4.42	-0.60	32
May	1011.9	66.0	46.0	56.0	+ 2.0	79	23	38	15	54.7	4.0	10.9	75	52.8	50.2	4.28	-2.19	28
June	1009.1	72.7	50.8	61.7	+ 1.8	86	4.5	44	22	61.3	5.4	13.0	71	57.8	54.5	7.80	+ 1.10	47
July	1015.6	78.4	56.8	67.6	+ 4.1	95	27	52	1,15	65.9	4.9	16.3	75	62.0	58.0	7.20	+ 0.70	45
August	1015.9	79.4	55.8	67.6	+ 5.0	96	6	47	24	66.0	5.9	15.3	70	63.4	60.4	7.78	+ 1.58	54
September	1015.3	70.4	52.1	61.3	+ 3.3	81	3	41	15	60.1	3.5	14.1	81	60.2	59.8	6.34	+ 1.39	50
October	1009.7	58.2	44.7	51.5	+ 1.3	70	6	31	28	51.1	2.3	11.1	84	54.0	56.6	3.09	-0.03	29
November	1009.3	47.5	38.4	42.9	-1.1	56	7	32	13	42.4	1.5	8.1	87	46.5	50.9	0.80	-0.92	9
December	1016.9	38.4	31.1	34.7	-5.5	45	22	25	6,10,14	34.7	1.5	5.8	85	39.7	45.4	0.80	-0.26	10
Year	1013.1	59.6	43.3	51.4	+ 1.3	96	Aug. 6	20	Jan. 23	50.6	3.2	10.5	79	50.7	51.2	4.21	+ 0.18	32
The hours of observation are 9 a.m. and 9 p.m. local time. † The normals used are obtained from observations extending over 35 years (1881-1915). *Pressure is expressed in millibars (1000 mb. = 29.531 mercury-inches).