TYBEE ISLAND, GEORGIA

Average Temperature

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		19.4		11.1		11.5		14.8		18.9		23.1		26.5		27.4		27.3		25.4		20.9		15.3		11

Average High Temperature

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		23.9		15.8		16.7		19.7		23.7		27.7		30.6		31.6		31.4		29.1		25.2		20.2		15.8

Average Low Temperature

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		15.1		6.2		6.7		10.1		14.2		18.8		22.3		23.2		23.3		21.7		16.7		10.8		6.6

Highest Recorded Temperature

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		39.4		30		27.8		32.8		34.4		37.2		39.4		38.3		39.4		37.2		32.8		31.7		27.2

Lowest Recorded Temperature

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-11.1		-11.1		-10.6		-4.4		1.7		4.4		15.6		16.7		16.7		8.9		2.8		-10.6		-6.1

Average Number of Days Above 90F/32C

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		40.1		---		---		---		0.2		2.7		9.2		12.8		12.1		2.9		0.2		---		---

Average Number of Days Below 32F/0C

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11.9		3.8		3.3		0.7		---		---		---		---		---		---		---		0.8		3.3

Average Precipitation

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1109		67		77		94		61		74		120		151		164		126		67		43		67

Average Number of Days With Precipitation

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		88		7		7		8		6		7		9		11		9		8		5		5		7

Most Precipitation Reported in a Day

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm.		251.5		78.7		68.3		71.4		50.8		140.2		101.6		146.1		251.5		121.9		171.4		59.2		58.7

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

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		62		4		5		6		4		5		7		8		7		6		4		3		4

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

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28		2		2		3		2		2		3		4		4		3		1		1		2

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

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		13		1		1		1		1		1		2		2		2		2		1		---		1

Most Rain Reported in a Month

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1675		202		175		278		139		305		329		495		371		344		274		159		174

Least Rain Reported in a Month

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		774		8		8		2		4		6		29		35		31		4		1		---		2

Heating Degree Days

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1003.4		227.3		188.3		106.8		---		---		---		---		---		---		---		84.2		220.4

Cooling Degree Days

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1264.7		---		---		---		17.5		151.6		243.3		280.7		279		211.7		80.9		---		---

Growing Degree Days

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3511.8		31		47.1		151.6		267.5		409.9		493.3		539.1		537.3		461.7		339.3		165.8		37.9

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.6		10.8		11.5		12.4		13.4		14.3		14.7		14.5		13.7		12.7		11.8		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		16.1		10		12.4		16		20.8		22.1		21.1		20.9		18.8		16		14.2		11.3		9.5

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.1		3.7		4.7		6		7		8.1		8.8		8.6		7.8		6.6		4.9		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		17.2		13.8		15.6		17.9		20.6		20.2		18.6		18.8		18		16.9		17.3		15.3		13.9

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.1		14.5		15.1		17.1		21.4		20.8		18		18.1		16.6		15.4		17.2		16.5		15.1

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.1		10		12.4		16		20.8		22.1		21.1		20.9		18.8		16		14.2		11.3		9.5

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.5		3.9		5		6.4		7.7		8.7		9.1		8.9		8.1		6.9		5.4		4.2		3.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20.1		16.1		20.1		20.1		24.4		22.2		21.5		20.5		20.5		20.1		21.5		18.1		16.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.2		18		22.1		20.7		29.1		25.2		24.4		21.7		21.2		20.6		24.1		21		18.5

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.3		7		10.4		11.9		17.4		18.6		18		18.6		16.5		13.2		11.6		8		8

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		5.7		5.6		7.5		8		8.2		7.3		6.1		4.1		3.3		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		8.7		12.6		12.7		17		17.1		16.2		16.9		15.8		13.6		13.6		9.8		11

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.5		7.2		10.8		9.5		14.9		14.7		13.1		14.4		12.7		10.3		11.7		8.3		10.7