THORNE BAY, ALASKA

Average Temperature

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		44.2		32.2		34		---		41.3		48.8		54.1		58		57.7		51.6		44.3		37.3		34.4

Average High Temperature

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		50.9		36.8		39.5		---		49.4		58		62.6		66.3		65.9		58.9		49.8		41.9		38.3

Average Low Temperature

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		37.5		27.6		28.4		---		33.2		39.7		45.5		49.7		49.6		44.3		38.7		32.9		30.4

Highest Recorded Temperature

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		91		58		60		73		79		91		87		86		79		66		64		58		91

Lowest Recorded Temperature

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-5		-2		-5		13		24		32		39		36		26		23		5		3		-5

Average Number of Days Above 90F/32C

Years on Record: 62

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

Average Number of Days Below 32F/0C

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		123		27		21.1		19.3		14		3.1		0.1		---		---		0.7		5.2		13.7		18.9

Average Number of Days Below 0F/-17C

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.7		0.3		0.1		---		---		---		---		---		---		---		---		---		0.3

Average Precipitation

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		103		10.5		8.5		8.2		6.6		4.2		3.1		3.3		4.9		9.9		16		14.8		13

Average Number of Days With Precipitation

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		234		20		18		21		19		17		16		15		16		20		26		24		22

Most Reported Precipitation in a Month

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		32.3		21.1		19.6		18.5		10.2		7		5.7		6.1		9.4		18.5		32.3		19.8		25.1

Least Reported Precipitation in a Month

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		0.2		1.9		0.2		2.3		2.3		1.9		0.6		0.9		0.4		2.8		6.1		5.6		1.3

Most Precipitation Reported in a Day

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		10.4		4.1		3.4		2.5		2.2		2.7		1.5		1.1		1.9		3.8		5.1		4.4		10.4

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

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		173		16		14		15		14		10		9		9		11		15		21		21		18

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

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		75		8		6		6		5		2		2		2		4		7		11		12		10

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

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28		3		2		2		2		1		---		---		1		3		5		5		4

Average Snowfall

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		42.6		23.3		7.2		1.7		0.1		---		---		---		---		---		---		4.2		6.1

Average Snow Cover

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		1		2		2		---		---		---		---		---		---		---		---		1		3

Most Snow Reported in a Month

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		170.9		170.9		28.9		4.7		0.6		---		---		---		---		---		---		31.5		34.7

Heating Degree Days

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4214		708		595		572		410		203		72		16		17		117		333		531		640

Cooling Degree Days

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		10		---		---		---		---		---		2		4		4		---		---		---		---

Growing Degree Days

Years on Record: 62

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		655.4		---		---		---		---		127.1		240		238.7		49.6		---		---		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		13		8.6		10.4		12.6		14.9		17.1		18.4		17.7		15.6		13.3		11		9		7.9

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.5		0.5		1.2		2.3		3.7		4.6		4.9		4.4		3.7		2.5		1.4		0.7		0.3

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.4		0.8		1.4		2		2.6		2.7		2.6		2.2		1.5		0.9		0.5		0.2

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.7		1.1		2		2.9		3.9		4.2		4.2		3.9		3.6		2.9		2.1		1.3		0.6

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.4		0.9		1.7		2.4		3.4		3.8		3.9		3.4		2.9		2.4		1.8		1.1		0.5

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.5		0.5		1.2		2.3		3.7		4.6		4.9		4.4		3.7		2.5		1.4		0.7		0.3

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.4		0.9		1.5		2.1		2.6		2.8		2.6		2.2		1.6		0.9		0.5		0.3

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.5		1.4		2.9		4		5.1		5.2		5.3		4.5		4.4		4.1		2.4		1.7		0.8

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.5		1.2		2.5		3.5		5.4		5.7		6.2		4.6		4.2		4		2.1		1.6		0.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2		0.4		0.9		1.9		3.1		3.9		4.1		3.5		2.8		1.9		1.1		0.5		0.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.4		0.3		0.6		1.3		2		2.5		2.7		2.5		2		1.3		0.7		0.4		0.2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.1		0.8		1.5		2.2		3.1		3.5		3.5		3.1		2.7		2		1.4		0.8		0.4

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.6		1.1		1.6		2.3		2.6		2.6		1.9		1.7		1.3		1.1		0.6		0.3