HATFIELD, ENGLAND

Average Temperature

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		50		40.1		40.1		43.7		46.4		52.7		58.1		62.6		63.5		57.2		50.9		43.7		40.1

Average High Temperature

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		57.2		44.6		44.6		50		53.6		60.8		66.2		71.6		71.6		64.4		57.2		48.2		44.6

Average Low Temperature

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		42.8		35.6		35.6		37.4		39.2		44.6		50		53.6		55.4		50		44.6		39.2		35.6

Highest Recorded Temperature

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		100.4		55.4		62.6		69.8		75.2		84.2		86		93.2		100.4		82.4		78.8		62.6		57.2

Lowest Recorded Temperature

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		17.6		19.4		17.6		19.4		24.8		32		37.4		41		42.8		39.2		26.6		24.8		19.4

Average Number of Days Below 32F/0C

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		64.4		14.3		13.9		11.6		5.2		0.7		---		---		---		---		2.3		6		10.4

Average Precipitation

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		25.2		2.3		1.7		1.6		2		1.9		1.6		2.6		2.2		2.1		2.5		2.5		2.2

Average Number of Days With Precipitation

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		189		18		15		16		16		15		14		13		13		15		18		18		18

Average Number of Rainy Days

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		72.7		7.1		5.6		5.1		6		5.7		4.7		6.8		5.9		5.9		6.5		6.6		6.8

Average Number of Days With Snow

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		13		2		4		2		2		---		---		---		---		---		---		1		2

Average Relative Humidity

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		78		89		87		83		80		79		78		77		77		81		86		90		91

Average Dew Point

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		43		35		34		36		39		45		50		53		54		51		46		40		38

Heating Degree Days

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5484.8		771.9		703.4		660.3		558		381.3		207		74.4		46.5		234		437.1		639		771.9

Growing Degree Days

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1379.7		---		---		---		---		83.7		243		390.6		418.5		216		27.9		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.9		9.1		10.6		12.5		14.6		16.4		17.4		16.9		15.2		13.2		11.2		9.4		8.5

Average Number of Days With Fog

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		63		7		6		5		5		5		3		3		3		5		5		8		8

Average Wind Speed

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		10.6		12.4		12.4		12.4		10.6		10		9.3		9.3		9.3		9.3		10.6		10.6		11.8

Highest Reported Wind Gust

Years on Record: 21

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		62.2		62.2		48.5		51.6		43.5		34.8		32.3		33.6		31.1		51.6		57.8		40.4		46

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.7		0.7		1.4		2.4		3.6		4.7		4.9		4.8		4.2		2.9		1.7		0.9		0.6

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.5		0.8		1.5		2.1		2.5		2.8		2.6		2.2		1.6		1		0.6		0.4

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.9		1.2		2		2.9		3.7		4.3		4.2		4.3		4.2		3.3		2.4		1.5		1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.5		1.1		1.7		2.3		3		3.8		3.7		3.8		3.7		2.8		2.1		1.4		0.9

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.7		0.7		1.4		2.4		3.6		4.7		4.9		4.8		4.2		2.9		1.7		0.9		0.6

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.6		0.9		1.6		2.1		2.6		2.8		2.7		2.3		1.7		1.1		0.7		0.5

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.7		1.7		2.5		4		4.9		5.3		4.8		5		5		4.5		2.9		1.9		1.5

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.6		1.6		2.3		3.6		4.9		5.8		4.9		5.2		5.2		4.3		2.7		1.8		1.3

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.3		0.6		1.2		2		3		4		4		4.1		3.4		2.4		1.3		0.8		0.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.4		0.8		1.3		2		2.5		2.6		2.6		2.2		1.5		0.8		0.6		0.3

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.3		0.8		1.7		2.2		3		3.7		3.5		3.7		3.2		2.6		1.7		1.3		0.4

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		0.6		1.3		1.5		2		2.7		2.4		2.7		2.3		2		1.3		1.1		0.2