HATTERAS, NORTH CAROLINA

Average Temperature

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		63		45.7		46.7		52.4		60		68.2		75.3		79.3		79.2		75.3		66.5		57.5		49.7

Average High Temperature

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		69.2		52.6		53.6		59.4		66.8		74.6		81		84.9		84.7		80.9		72.3		63.9		56.3

Average Low Temperature

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		56.8		38.9		39.8		45.5		53.3		61.9		69.6		73.8		73.6		69.8		60.7		51.1		43

Highest Recorded Temperature

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		97		80		76		82		90		91		97		97		97		91		89		81		76

Lowest Recorded Temperature

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		7		7		11		21		28		39		49		52		55		44		34		26		12

Average Number of Days Above 90F/32C

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.2		---		---		---		---		---		0.6		1.8		1.5		0.2		---		---		---

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		113.7		0.1		---		---		0.3		5.3		22.2		30.3		29		21.7		4.7		0.2		---

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		200.3		1.3		0.5		3.1		13		26.8		29.4		31		31		29.8		22		9.7		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		281.7		10		9.4		17.8		25.8		30.6		30		31		31		30		30.4		22.6		13.1

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		337.3		20.4		20.7		27.7		29.8		31		30		31		31		30		31		29		25.6

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		361.1		28.8		27		30.8		30		31		30		31		31		30		31		30		30.4

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		263.9		31		28		31		29.7		26.9		11.5		2.6		3.3		12.3		26.6		29.9		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		183.7		30.7		27.8		29.4		21.4		7.9		1.2		---		0.1		0.6		11.1		24.2		29.5

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		110.5		26.7		23.5		19.9		7		0.7		---		---		---		---		1.2		9.3		22.2

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		38.5		14.8		9.7		5		0.7		---		---		---		---		---		---		1.2		7.1

Average Number of Days Below 32F/0C

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		18		7.2		5.8		1.3		---		---		---		---		---		---		---		0.3		3.4

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		0.5		0.4		---		---		---		---		---		---		---		---		---		---		0.1

Average Precipitation

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		53.4		4.5		4		4.1		3.2		3.8		4.6		5.2		5.9		4.8		4.7		4.5		4.2

Average Number of Days With Precipitation

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		106		10		9		10		8		9		8		10		10		8		8		8		9

Most Precipitation Reported in a Day

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		14.3		4.8		3.8		5.4		3.3		5		14.3		6.4		6.1		5.8		4.8		5.6		4.3

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

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		76		7		7		7		5		6		6		7		7		5		6		6		7

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

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		34		3		3		3		2		2		3		3		4		3		3		3		3

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

Years on Record: 111

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

Most Rain Reported in a Month

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		74.7		9.6		8.5		10.9		8.5		14.3		20.9		12		14.6		16.4		12.4		14.3		9.5

Least Rain Reported in a Month

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		29.5		---		0.9		---		---		0.6		0.5		0.4		0.5		0.3		0.4		0.6		0.7

Average Snowfall

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		1		0.2		0.3		0.4		---		---		---		---		---		---		---		---		0.1

Most Snow Reported in a Month

Years on Record: 111

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		13		3		5.9		11		---		---		---		---		---		---		---		---		2

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2134		543		444		346		137		21		1		---		---		1		42		191		408

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2006		---		---		4		36		158		346		477		473		349		135		25		4

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5721		73		69		166		353		601		795		942		938		798		558		295		133

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		13.6		14.5		15		14.7		13.9		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		4.4		2.4		3.2		4.4		5.6		6.2		6.3		6.1		5.5		4.7		3.8		2.8		2.3

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		0.9		1.2		1.6		1.9		2.2		2.4		2.3		2.1		1.7		1.3		1		0.8

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.8		3.5		4.1		5		5.6		5.7		5.5		5.4		5.3		5.1		4.9		4.1		3.5

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.9		3.6		4.1		4.9		5.8		6		5.8		5.6		5.2		5		5		4.4		3.7

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.4		2.4		3.2		4.4		5.6		6.2		6.3		6.1		5.5		4.7		3.8		2.8		2.3

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		5.6		4.4		5.1		5.6		6.6		6.4		6.2		6		5.9		5.9		6.1		5.1		4.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		6.4		4.9		5.7		6		7.7		7.6		7.4		6.8		6.4		6.4		6.9		6		4.8

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.7		2		2.4		3.9		4.8		4.9		5.4		5.4		4.7		3.9		3.4		2.1		1.8

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		0.9		1.1		1.5		1.6		2		2.2		2.2		1.9		1.5		1		0.8		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		3.9		2.6		2.9		4.3		4.8		4.5		4.8		4.9		4.5		4.2		4.1		2.7		2.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.4		2.4		2.3		3.9		4.4		3.8		4.2		4.4		3.8		3.6		3.9		2.4		2.3