HELENA, MISSISSIPPI

Average Temperature

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		63		43		45		53		63		71		78		81		81		75		64		52		45

Average High Temperature

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		74		53		55		64		74		82		89		92		92		87		77		64		55

Average Low Temperature

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		52		33		36		43		52		60		68		71		70		64		52		41		35

Highest Recorded Temperature

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		113		78		82		92		98		103		108		111		109		113		99		90		81

Lowest Recorded Temperature

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-9		-9		-7		11		27		38		46		52		48		37		25		12		8

Average Number of Days Above 90F/32C

Years on Record: 9

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		89		---		---		---		---		6		18		25		25		14		1		---		---

Average Number of Days Below 32F/0C

Years on Record: 9

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		47.3		15		8		4		0.3		---		---		---		---		---		1		7		12

Average Precipitation

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		52.5		5.6		4.6		5.9		5.5		4.5		3.7		3.8		3.4		3.3		2.8		4.6		4.9

Average Number of Rainy Days

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		83.8		9.2		8.2		7.4		7.3		7		6.5		6.6		6.1		5.3		4.7		7		8.5

Average Snowfall

Years on Record: 76

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		5.4		1.9		1.6		0.6		---		---		---		---		---		---		---		0.1		1.2

Average Relative Humidity

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		68		72		70		65		63		68		68		70		70		68		66		65		70

Average Dew Point

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		50		33		35		38		47		58		66		69		68		61		50		37		33

Heating Degree Days

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2659.9		682		550.9		356.5		60		---		---		---		---		---		15.5		375		620

Cooling Degree Days

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1913.5		---		---		---		---		186		405		511.5		496		315		---		---		---

Growing Degree Days

Years on Record: 60

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5231.5		---		---		108.5		390		651		855		976.5		961		765		449.5		75		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		10.6		11.4		12.4		13.5		14.5		14.9		14.7		13.8		12.8		11.7		10.8		10.3

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.2		2.3		3		4		5.1		5.5		6		6.1		5.6		4.9		3.7		2.6		2.1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		1		1.2		1.6		2		2.4		2.4		2.3		2.1		1.7		1.3		1		0.9

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.6		3.3		3.8		4.5		5.1		5		5.3		5.5		5.4		5.3		4.7		3.6		3.2

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.5		3.4		3.7		4.2		4.9		4.7		5.4		5.7		5.5		5.4		4.8		3.7		3.3

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.2		2.3		3		4		5.1		5.5		6		6.1		5.6		4.9		3.7		2.6		2.1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		1		1.3		1.7		2.1		2.4		2.5		2.4		2.2		1.8		1.4		1.1		0.9

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.4		4.7		5		5.7		5.7		5.6		5.8		6		6.1		5.9		5.8		4.9		4.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6		5.4		5.5		6.1		5.9		5.8		6.6		7		6.9		6.5		6.4		5.6		4.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.5		1.8		2.1		3.3		4.1		4.7		5.2		5.5		5.1		4.3		2.7		1.9		1.6

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		0.8		1.1		1.5		1.9		2.3		2.3		2.1		1.9		1.5		1.1		0.9		0.8

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.6		2.4		2.4		3.6		4		4.3		4.6		4.9		4.9		4.6		3.2		2.4		2.3

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.1		2		1.9		2.9		3.1		3.4		4		4.6		4.5		4.3		2.5		1.9		2