home	Summary of the weather at Hampstead during 1999
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earlier years
Month	Mean Max	Mean Min	Hi Max	Date	Lo Max	Date	Hi Min	Date	Low Min	Date	GrassMin	Date	AirFrost	Grnd Frost	Max <0	Max >10	Max >21	Fog
	degC	degC	degC		degC		degC		degC		degC		days	days	days	days	days	09gmt
Jan-99	8.8	3.3	14.6	6	2.5	11	10.4	20	-2.4	12	-10.5	12	3	14	0		0	1
Feb-99	8.1	2.2	12.8	19	2.8	8	8.1	19	-3.5	11	-9.5	25	7	16	0		0	0
Mar-99	12.2	4.5	18.9	17	4.4	5	11.5	2	-1.0	11	-5.8	11	1	14	0		0	0
Apr-99	14.3	5.8	19.4	30	7.3	14	10.7	5	-1.8	14	-7.4	14	2	11	0		0	0
May-99	18.3	9.5	24.2	27	13.9	30	15.2	28	4.2	1	-1.4	1	0	3	0		5	0
Jun-99	19.3	10.5	25.4	16	13.6	11	15.7	27	5.6	9	-1.0	22	0	2	0		9	1
Jul-99	24.1	13.7	29.8	31	18.1	22	17.6	3	8.9	23	1.0	19	0	0	0		26	0
Aug-99	21.7	13.3	30.1	1	16.2	17	19.2	3	8.6	22	1.8	16	0	0	0		19	0
Sep-99	20.7	12.8	28.2	11	13.0	14	16.5	12	9.5	16	2.6	10	0	0	0		12	0
Oct-99	14.8	8.2	18.3	9	9.0	20	13.4	10	3.6	6	-2.2	6	0	5	0		0	0
Nov-99	10.6	5.3	16.1	1	5.6	20	11.6	1	0.5	18	-4.8	30	0	13	0		0	0
Dec-99	7.6	2.0	12.9	3	1.0	19	8.9	7	-5.0	20	-9.9	20	7	16	0		0	0
YEAR	15.0	7.6	30.1		1.0		19.2		-3.5		-10.5		20	94	0		71	2
Month	Rainfall	WettestDay	Date	>0.2mm	>1mm	>25mm	Sunshine	Max Sun	Date	NoSun	>10h	Snow	SnowLying	Thunder	Hail	IcePellets	MostSnow	Date
	mm	mm		days	days	days	hours	hours		days	days	days	0900gmt	days	days	days	cm
Jan-99	85.4	15.1	15	21	17	0						1	0	1	1	0	0
Feb-99	27.8	8.7	26	13	9	0						1	0	0	1	0	0
Mar-99	35.9	7.3	3	13	10	0						1	0	1	0	0	0
Apr-99	49.4	9.3	20	16	11	0						2	0	0	2	0	0
May-99	42.8	10.5	29	15	7	0						0	0	2	1	0	0
Jun-99	87.2	19.8	1	16	15	0						0	0	2	0	0	0
Jul-99	10.1	3.4	2	6	4	0						0	0	4	0	0	0
Aug-99	85.2	21.5	9	16	10	0						0	0	3	0	0	0
Sep-99	111.6	27.0	22	17	11	1						0	0	3	0	0	0
Oct-99	44.3	14.2	23	11	9	0						0	0	0	0	0	0
Nov-99	37.0	8.0	5	18	10	0						0	0	1	1	0	0
Dec-99	85.6	11.4	24	23	19	0						5	3	0	0	0	2	19
YEAR	702.3	21.5		185	132	1						10	3	17	6	0	2