HAYSI, VIRGINIA

Average Temperature

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		11.7		-4.8		0.4		7.3		12.4		18.2		21.8		23.8		21.7		18.6		13.4		5.8		1.2

Average High Temperature

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		19.1		1.2		8.2		16.2		21.1		26.7		29.3		30.8		29.1		25.4		20.6		12.6		7.6

Average Low Temperature

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		4.4		-10.8		-6.7		-1.2		3.7		9.8		14.2		16.4		15.3		12.1		6.4		-0.8		-5.2

Highest Recorded Temperature

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		41.1		22.2		26.1		28.9		34.4		35.6		41.1		41.1		40.6		36.1		32.2		28.9		25

Lowest Recorded Temperature

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-23.9		-23.9		-21.7		-17.8		-6.7		-0.6		5		9.4		8.3		3.3		-4.4		-11.7		-17.8

Average Number of Days Above 90F/32C

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		29.7		---		---		---		---		3.2		9		11.2		4.8		1.5		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		123.7		29.3		25.2		18.3		6.3		0.8		---		---		---		---		3		18		22.8

Average Number of Days Below 0F/-17C

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8.7		6		1		0.7		---		---		---		---		---		---		---		---		1

Average Precipitation

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1122		87		83		95		96		118		113		108		101		85		77		80		79

Average Number of Days With Precipitation

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		137		13		12		12		11		13		12		12		10		9		9		10		12

Most Precipitation Reported in a Day

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm.		230.9		46.5		93.2		97.3		78.5		86.4		230.9		101.6		59.2		68.6		66.8		55.4		62.5

Avg. No. of Days w/Precip. Above 0.2in/5mm

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		89		8		8		8		8		9		8		8		7		6		6		7		7

Avg. # of Days w/Precip. Above 0.4in/10mm

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		29		2		2		2		2		3		3		3		3		2		2		2		2

Avg. No. of Days w/Precip. Above 1in/25mm

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9		1		---		1		1		1		1		1		1		1		1		1		1

Most Rain Reported in a Month

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1390		189		169		261		205		249		340		257		217		179		166		182		171

Least Rain Reported in a Month

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		920		30		30		22		28		22		29		16		35		12		8		12		22

Average Snowfall

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		37.3		12.7		11.7		4.1		2.8		---		---		---		---		---		---		1.3		4.8

Most Snow Reported in a Month

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		144.8		68.6		45.7		20.3		91.4		---		---		---		---		---		---		17.8		33.8

Heating Degree Days

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3208.6		717.3		497.5		335.8		177.5		1.7		---		---		---		---		149.8		374.2		530.4

Cooling Degree Days

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		400.8		---		---		---		---		---		103.3		163.6		120.6		13.3		---		---		---

Growing Degree Days

Years on Record: 41

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1855		---		---		---		72.5		256.6		353.3		421.9		378.9		263.3		108.5		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		10.4		11.3		12.4		13.6		14.7		15.2		14.9		14		12.8		11.6		10.6		10.1

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.9		7.3		9.5		13.2		16.5		18.6		20.6		19.8		18.2		15.7		12.4		8.3		6.5

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.9		3.2		4.3		5.8		7.3		8.5		8.9		8.7		7.7		6.1		4.5		3.4		2.9

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15		10.8		11.9		15		16.6		17.1		18.1		17.8		17.6		17.1		16.1		12.1		10

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.3		10.5		11.1		13.5		14.8		15.5		17.6		16.9		16.6		16.5		16.1		12.2		9.8

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.9		7.3		9.5		13.2		16.5		18.6		20.6		19.8		18.2		15.7		12.4		8.3		6.5

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.1		3.3		4.4		5.9		7.5		8.6		9.1		8.9		7.9		6.4		4.8		3.6		3

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.3		13.2		14.4		18.9		19		21.2		20.2		20.4		19.6		20.9		20.9		19		12.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.8		14		14.7		19.6		19		23.8		22.1		22.4		20.2		22.9		23.4		22.6		12.9

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.3		6		7.1		9.3		13.1		14.8		17.5		18		16.3		13.5		8.7		5.3		5.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.5		3.1		4.2		5.3		7.1		7.7		8.5		8.1		7.3		5.4		3.7		2.5		2.8

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.6		8.3		8.3		9.9		13		13.6		15.6		16.2		15.7		14.4		10.3		6.5		7.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.2		7.3		6.3		6.6		9.2		9.6		12.6		13.9		13.3		12.2		8		4.8		6.6