ROANOKE, ALABAMA

Average Temperature

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.4		6.2		7.8		11.8		16.4		20.8		24.6		26.1		25.8		22.7		16.6		11.1		6.9

Average High Temperature

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		23.9		13.1		15.2		19.6		24.8		28.8		32.2		33		32.8		29.8		24.9		19.1		14

Average Low Temperature

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		8.8		-0.6		0.6		3.9		8.1		12.8		17.1		19.2		18.7		15.5		8.3		3		-0.2

Highest Recorded Temperature

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		41.7		28.3		28.3		31.1		33.3		36.7		39.4		41.7		40		37.8		37.2		30		26.7

Lowest Recorded Temperature

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-18.3		-17.8		-14.4		-11.7		-4.4		-0.6		-1.1		11.1		9.4		---		-6.1		-14.4		-18.3

Average Number of Days Above 100F/38C

Years on Record: 30

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

Average Number of Days Above 90F/32C

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		75.6		---		---		---		0.4		5.9		17.2		21.3		20.6		9.5		0.6		---		---

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		154.3		---		0.1		3.2		9.6		20.8		27.4		30.4		30		22.3		9.6		1		---

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		228.6		1.3		3.5		13.8		22.7		29.7		29.7		31		31		29.3		24.1		9.8		2.7

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		293.1		9.8		13.7		24.1		29		30.9		30		31		31		29.9		30.5		21.9		11.3

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		339.1		20.7		22.2		29.6		29.9		31		30		31		31		30		30.9		28.8		23.9

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		359.1		28.2		27.1		30.8		30		31		30		31		31		30		31		30		28.9

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		348.2		31		28		31		30		30.8		27.9		23.7		25.1		29.1		30.6		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		249		31		28		30.2		28		21.2		6.7		1.2		2.7		13		27.1		29.2		30.7

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		184.8		29.7		26.6		25.7		18.3		7.9		0.4		---		0.2		4		18.4		24.8		28.8

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		116.4		25		19.8		14.1		7		1.4		---		---		---		0.3		8.5		17.1		23.2

Average Number of Days Below 32F/0C

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		76.5		18.2		14.5		9.4		2.4		0.1		---		---		---		---		2.7		11.4		17.8

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		7.7		4.6		1		0.1		---		---		---		---		---		---		---		0.2		1.8

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		0.4		0.3		---		---		---		---		---		---		---		---		---		---		0.1

Average Number of Days Below 0F/-17C

Years on Record: 72

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

Average Precipitation

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1369		132		129		157		118		102		105		134		99		93		62		106		129

Average Number of Days With Precipitation

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		104		10		9		10		8		8		9		11		9		7		5		7		9

Most Precipitation Reported in a Day

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm.		178.8		107.4		178.8		135.1		115.6		160		147.1		124.7		101.6		127		120.7		119.1		107.7

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		72.2		6.8		6.9		6.3		5.5		6		6.5		7.7		5.2		5.1		4		5.5		6.7

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

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		78		7		7		8		6		6		7		8		6		5		4		6		7

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

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		36		4		4		4		3		3		3		4		3		2		2		3		3

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		33.6		3.4		3.4		3.1		3		2.4		2.9		3.2		2.1		2.2		1.5		2.8		3.6

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

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		16		2		2		2		1		1		1		2		1		1		1		1		2

Most Rain Reported in a Month

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1926		292		448		317		318		328		292		355		213		307		265		428		406

Least Rain Reported in a Month

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		890		46		7		29		36		9		12		8		16		5		---		---		23

Average Snowfall

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		1.3		0.8		---		0.5		---		---		---		---		---		---		---		---		---

Most Snow Reported in a Month

Years on Record: 72

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		10.9		15.2		2.3		15.2		---		---		---		---		---		---		---		---		3.8

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2919		696		511		336		153		34		1		---		---		17		160		389		621

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1598		---		---		9		38		150		322		420		389		216		47		5		1

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4905		31		54		187		344		581		771		885		854		649		359		138		51

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		10.7		11.5		12.4		13.5		14.4		14.8		14.5		13.8		12.8		11.7		10.9		10.5

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.4		9.1		11.5		15.6		19		21		20.3		20.7		18.7		16.3		14.2		10.4		8.6

Average 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		3.6		4.7		6		7.3		8.3		8.9		8.6		7.8		6.5		4.7		3.8		3.3

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.6		12.7		14.5		17.5		18.9		19.2		18		18.6		18		17.3		17.7		14.2		12.5

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.2		13		13.7		16.6		18.2		18.9		16.7		17.9		16.6		16.2		18		14.9		13.1

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.4		9.1		11.5		15.6		19		21		20.3		20.7		18.7		16.3		14.2		10.4		8.6

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.4		3.8		4.9		6.3		7.7		8.8		9.1		8.9		8.1		6.8		5.3		4.1		3.5

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.9		15.3		19.6		21		21.5		21.3		20.8		21		21.4		20.1		23.6		18.6		15.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22		16.9		21.4		22.4		23.1		23.1		22.8		23		23.1		20.8		27.7		21.9		17

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.5		6.9		8.9		12.8		15		16.3		16.6		17.8		17		13.5		10.9		7.5		7.2

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		3.4		4		5.3		6.7		7.8		8.3		8		7.1		6		3.4		3.1		3

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13		8.8		10.6		13.9		14.7		15.1		14.9		16.1		16.3		14		12.8		9.3		9.9

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.5		7.4		8.2		11.2		11.3		11.3		11.1		13.1		13.6		11.2		10.7		7.8		9.2