[Report of the Medical Officer of Health for Leyton] page 11

Leyton 1937

[Report of the Medical Officer of Health for Leyton]

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Table: TABLE 1—continued.

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TABLE 1—continued.

1937	Cloud.	Rain and other forms of Precipitation.				Weather Number of days of											Wind. Number of Observations at 9 a.m., 3							p.m.	and 9 p.m.
	Mean of Observations of amount at 9 a.m. and 9 p.m. (Scale 0-10).	Total Fall.	Percentage from Average. †	Most in a Day.		Precipitation (0.2 mm. and above).	Precipitation (1 mm. and above).	Snow.	Hall.	Thunder heard	Persistently Clear.	Generally Clear. ‡	Generally Overcast.‡	Persistently Overcast.	Fog at 9 a.m.	Gale.	Force.			Direction.
		Total Fall.	Percentage from Average. †	Amount.	Day of Month.	Precipitation (0.2 mm. and above).	Precipitation (1 mm. and above).	Snow.	Hall.	Thunder heard	Persistently Clear.	Generally Clear. ‡	Generally Overcast.‡	Persistently Overcast.	Fog at 9 a.m.	Gale.	Gale	Moderate and Strong Wind	Calm.	N.	N.E.	E.	S.E.	S.	S.W.	W.	N.W.
January	7.5	86	201	mm. 13	1	25	17	3	0	0	0	3	18	4	6	0	0	92	1	3	7	9	7	25	24	14	3
February	6.9	100	251	18	7	22	18	1	2	0	0	0	12	0	2	0	0	84	0	6	0	1	7	9	30	22	9
March	6.4	74	168	17	6	18	13	12	1	0	0	0	13	2	1	0	0	90	3	14	19	11	5	14	12	8	7
April	7.7	62	167	12	2	14	12	0	0	1	0	1	18	3	4	0	0	83	7	13	9	10	4	11	15	11	10
May	6.9	87	197	18	20	14	12	0	1	2	0	0	15	1	1	0	0	86	7	9	12	19	5	11	13	14	3
June	6.6	48	93	20	18	11	6	0	0	4	0	1	12	0	0	0	0	84	6	14	6	7	4	5	22	11	15
July	7.5	18	32	9	15	9	4	0	0	3	0	0	16	0	0	0	0	90	3	8	6	5	0	9	28	22	12
August	5.4	43	77	26	30	8	5	0	1	4	0	3	9	1	0	0	0	81	12	17	8	12	4	8	13	8	11
September	5.2	32	72	6	9	14	11	0	0	1	0	3	9	1	2	0	0	88	2	15	1	2	6	17	28	9	10
October	6.7	59	92	15	23	14	8	0	1	1	0	1	8	0	5	0	0	86	7	20	15	6	7	17	9	9	3
November	5.7	35	59	12	1	8	7	0	0	0	0	2	8	3	13	0	0	82	8	13	9	17	12	5	14	8	4
December	8.4	87	152	17	2	19	10	7	0	0	0	0	23	4	7	0	0	81	12	17	14	6	2	14	16	8	4
Year	6.7	731	122	26	Aug. 30	176	123	23	6	16	0	14	161	19	41	0	0	1027	68	149	106	105	63	145	224	144	91
‡ A day is reckoned as "generally clear" if the average of the estimates of the fraction of sky covered by cloud at 9 a.m., 3 p.m., and 9 p.m. is less than .2, and as "generally overcast" if the average is greater than .8. Days persistently cloudless and days persistently overcast refer to the period midnight to midnight.