DOUGLAS, ALASKA

Average Temperature

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		6		-3.2		-0.5		---		4.9		9.2		12.8		14.6		13.8		11		6.4		2.5		-0.8

Average High Temperature

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9.3		-0.8		2		---		8.8		13.5		17.6		18.8		17.7		14.4		9.2		4.5		1.5

Average Low Temperature

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		2.7		-5.7		-3		---		1.2		4.9		8.3		10.4		9.9		7.6		3.7		0.2		-3.1

Highest Recorded Temperature

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		30.6		15.6		11.1		22.2		26.7		28.9		30		30.6		24.4		22.8		15.6		11.1		30.6

Lowest Recorded Temperature

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-22.8		-22.8		-20		-11.1		-1.1		2.8		5		3.3		-0.6		-3.9		-20		-22.8		-22.8

Average Number of Days Below 32F/0C

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		118		26		24.4		20.4		9.2		1.1		---		---		---		0.2		4.2		12.1		20.4

Average Number of Days Below 0F/-17C

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.7		1.2		0.4		---		---		---		---		---		---		---		0.1		0.6		2.4

Average Precipitation

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		2345		157		181		154		159		161		103		158		197		263		333		246		232

Average Number of Days With Precipitation

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		222		16		18		17		18		19		16		17		18		20		23		20		20

Most Reported Precipitation in a Month

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		501		325		412		248		257		286		227		312		476		444		501		448		376

Least Reported Precipitation in a Month

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		22		22		41		37		91		63		39		69		43		139		138		100		86

Most Precipitation Reported in a Day

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		112.5		96.5		66		62.5		50		57.7		50		69.3		85.8		111.2		112.5		85.3		108

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

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		170		12		14		13		13		13		12		12		14		16		19		17		15

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

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		65		4		5		4		4		5		2		4		5		8		10		7		7

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

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		20		1		2		1		1		1		---		1		2		3		4		2		2

Average Snowfall

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		189		55.6		38.6		55.6		5.8		---		---		---		---		---		---		7.4		25.9

Average Snow Cover

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		5		27		17		17		---		---		---		---		---		---		---		---		5

Most Snow Reported in a Month

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		142.8		142.8		126.8		79.8		32.3		---		---		---		---		---		---		38.1		88.1

Heating Degree Days

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2626.7		496.7		374.4		361.1		235		117.2		33.3		10		13.9		60.6		196.7		307.8		420

Cooling Degree Days

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5.6		---		---		---		---		---		1.1		3.3		1.1		---		---		---		---

Growing Degree Days

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		375.9		---		---		---		---		87.8		138.3		118.8		31		---		---		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		13.2		8.1		10.2		12.6		15.3		17.8		19.4		18.5		16		13.4		10.8		8.6		7.4

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.4		1.6		4		8		13.4		17.9		19		17.5		14		9.1		5.1		2.2		1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.3		1.1		2.5		4.8		7.2		9.4		9.9		9.4		8		5.2		3.1		1.6		0.7

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.5		3.7		7.3		11.3		15.3		16.3		16.3		15.4		13.9		11.1		8.1		5		2.4

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.7		3		6		9		13.6		16.5		17.3		15.4		12.5		9.9		7.2		4.3		2.1

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.4		1.6		4		8		13.4		17.9		19		17.5		14		9.1		5.1		2.2		1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.4		1.2		2.9		5.1		7.3		9.5		10		9.5		8.1		5.7		3.6		1.7		0.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.5		4.5		9.4		13.6		18		18		18.9		17.2		16.4		14.2		10.1		6.3		2.9

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.6		3.8		8.1		11.6		18		19.8		22.9		19.1		16.9		13.9		9.4		5.5		2.7

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		7.9		1.2		2.9		5.8		11.8		15.3		17.2		15.4		11.9		7		3.9		1.4		0.9

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		1		2		4.2		7.2		9.3		9.9		9.3		7.7		4.7		2.6		1.1		0.7

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.2		2.5		4.8		7.2		13		13.8		14.7		13.6		11.5		7.7		5.8		2.5		1.9

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.7		1.9		3.6		4.6		10.3		11.7		13.9		11.8		8.6		5.6		4.7		1.8		1.6