DELLSLOW, WEST VIRGINIA

Average Temperature

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		11.6		-0.4		0.6		5.4		11.4		16.4		20.8		22.9		22.3		18.6		12.6		6.8		1.3

Average High Temperature

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		17.1		4.1		5.5		10.9		17.7		22.7		26.9		28.7		28		24.5		18.5		11.8		5.7

Average Low Temperature

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		6.1		-5		-4.2		-0.1		5.2		10.2		14.8		17.1		16.5		12.7		6.7		1.9		-3

Highest Recorded Temperature

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		38.9		23.9		23.9		30		33.3		33.9		36.1		38.3		37.2		38.9		32.2		28.3		25

Lowest Recorded Temperature

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-28.9		-28.9		-23.3		-15.6		-10		-3.9		-1.1		5		3.3		-1.1		-8.3		-16.1		-25

Average Number of Days Above 90F/32C

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		12.6		---		---		---		---		0.4		2.7		5		3.4		1.1		---		---		---

Average Number of Days Above 80F/26C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		81.4		---		---		0.2		2.6		7.5		16.6		22.7		20.5		9.9		1.5		---		---

Average Number of Days Above 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		156.7		0.2		0.4		3.2		9.8		18.6		27.4		30.6		30.2		23.3		9.9		2.7		0.3

Average Number of Days Above 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		214		2		2.7		8.6		18.8		27.8		29.8		31		31		28.8		21.2		9.7		2.6

Average Number of Days Above 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		266.4		6.5		8.5		16.8		25.7		30.7		30		31		31		30		28.8		18.7		8.7

Average Number of Days Above 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		310.8		13.7		16		24.7		29.3		31		30		31		31		30		30.9		25.6		17.6

Average Number of Days Below 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		359.8		31		28		31		30		31		29.3		28.5		29.3		29.8		31		30		31

Average Number of Days Below 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		294.8		31		28		30.9		29.2		26.9		15.9		9.3		11.1		22		29.8		29.8		31

Average Number of Days Below 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		220.1		30.5		27.6		29.3		23.8		14.6		3.5		0.5		1		8.3		23.8		27.1		30.2

Average Number of Days Below 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		156.9		28.7		25.7		24.1		14.1		3.7		0.2		---		0.1		1.1		10.8		20.3		28.1

Average Number of Days Below 32F/0C

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		109.7		24.3		21.8		17.6		6.3		0.7		---		---		---		0.1		3.4		13.1		22.5

Average Number of Days Below 20F/-6C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		31.7		11.4		8.1		3.5		0.1		---		---		---		---		---		---		1.2		7.6

Average Number of Days Below 10F/-12C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8.4		4.2		2.1		0.5		---		---		---		---		---		---		---		---		1.6

Average Number of Days Below 0F/-17C

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.2		1.2		0.6		---		---		---		---		---		---		---		---		---		0.3

Average Precipitation

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1047		77		65		90		87		102		103		113		101		83		69		79		77

Average Number of Days With Precipitation

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		151		16		13		15		14		14		12		12		11		9		10		13		14

Most Precipitation Reported in a Day

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm.		127.2		43.2		68.8		55.1		46.2		71.6		69.8		110		127.2		67.3		106.7		88.7		56.9

Avg. No. of Days w/Precip. Above 0.1in/2.5mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		89.6		7.1		6.5		8.3		8.5		9.4		8.2		8		6.4		6.6		6.3		7.5		6.8

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

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		90		8		7		8		8		9		8		8		7		7		6		7		7

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

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		27		2		1		2		2		3		3		3		3		2		2		2		2

Avg. No. of Days w/Precip. Above 0.5in/13mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		27.2		1.6		1.6		2.5		2		3.1		3.1		3.3		2.4		1.9		1.9		2		1.8

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

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7		---		---		---		---		1		1		1		1		1		---		---		---

Average Precipitable Water

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		1.8		1		0.9		1.2		1.5		2		2.8		3.1		3.1		2.5		1.7		1.3		1

Most Rain Reported in a Month

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1547		206		134		185		151		227		239		304		270		180		186		276		184

Least Rain Reported in a Month

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		750		16		16		25		29		32		22		35		26		18		6		17		16

Average Snowfall

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		76		24.6		17.8		13.2		1.8		---		---		---		---		---		---		4.8		14

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		18.8		6.1		4.3		3.3		0.3		---		---		---		---		---		0.2		1.1		3.5

Most Snow Reported in a Month

Years on Record: 65

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		153.9		100.8		59.9		46.7		33.8		1.5		---		---		---		---		3		49		57.9

Avg. No. of Days w/Snow Above 1in/2.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8.9		2.9		2.1		1.5		0.2		---		---		---		---		---		0.1		0.3		1.8

Avg. No. of Days w/Snow Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.2		0.7		0.5		0.6		0.1		---		---		---		---		---		---		0.1		0.2

Avg. No. of Days w/Snow Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.2		0.3		0.2		0.4		0.1		---		---		---		---		---		---		0.1		0.1

Avg. No. of Days w/Snowfall Above 10in/25cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.2		0.1		---		0.1		---		---		---		---		---		---		---		---		---

Avg. # of Days w/Snow Depth Above 1in/2.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28.8		10.4		6.4		4.1		0.4		---		---		---		---		---		---		1		6.5

Avg. # of Days w/Snow Depth Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		13.2		6.5		2.4		1.6		0.2		---		---		---		---		---		---		0.4		2.1

Avg. # of Days w/Snow Depth Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		6.6		4		1		0.8		0.2		---		---		---		---		---		---		0.2		0.4

Avg. # of Days w/Snow Depth Above 10in/25cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.6		0.8		0.2		0.3		0.1		---		---		---		---		---		---		0.1		0.1

Average Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		68.8		70		65.3		63		59.2		67.2		72.1		73.4		74.8		74.2		70.1		67.1		70

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5183		1043		862		712		382		170		31		3		8		86		345		606		936

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		813		---		---		2		14		51		162		255		225		92		12		1		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3293		10		11		51		167		354		581		718		682		459		187		62		14

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.3		11.2		12.5		13.8		14.9		15.5		15.2		14.1		12.9		11.6		10.5		9.9

Average Total Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		62		76.3		73.1		66		60.9		59.7		56.5		55.4		54.2		50.9		53.7		66		73.1

Average Opaque Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		58.6		74		69.6		62.2		56.7		56.2		53		51.2		49.4		46.6		50.9		62.3		70.4

Average Wind Speed

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		8.6		10.5		10.4		10.3		10		8.4		7.3		7.1		6.2		6.7		7.6		8.9		9.7

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.2		6.4		9.2		12.3		16.2		18		20.5		20.3		17.9		15.1		11.1		6.7		5.4

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.7		2.9		3.9		5.5		7.2		8.4		8.9		8.5		7.5		5.9		4.3		3.1		2.6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.5		10.4		12.6		14.3		16.4		16.5		17.9		18.1		17.4		16.8		14.8		10		8.9

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		10		12.2		12.8		15.1		15		17.9		18.2		16.9		16.6		14.5		9.7		8.6

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.2		6.4		9.2		12.3		16.2		18		20.5		20.3		17.9		15.1		11.1		6.7		5.4

Maximum 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		2.9		4		5.6		7.3		8.6		9.1		8.8		7.7		6.2		4.5		3.2		2.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.6		13		16.3		18.5		18.7		19.9		21.1		20		19.8		19.6		18		15.1		11.3

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		13.5		17.5		19.4		19		21.6		24.9		22.1		21.2		21.1		19.3		16.6		11.4

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.9		5		7.6		10.5		13.7		13.9		17.6		16.9		15.9		12		9.1		4.5		4.5

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.3		2.7		3.6		5		6.9		7.9		8.1		8.1		7		5.4		3.9		2.8		2.5

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.5		7.1		9.7		11.8		13.6		12.7		15.5		15.2		15.3		12.8		11.4		5.8		6.8

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.4		6.1		8.4		9.4		10.7		8.7		13.1		12.6		13.1		10.5		9.9		4.4		5.9