ALAID ISLAND, ALASKA

Average Temperature

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		3		---		---		---		1		3		6		8		10		8		6		2		---

Average High Temperature

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		5		1		---		1		3		5		7		9		11		10		7		3		1

Average Low Temperature

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		2		-2		-2		-1		---		2		4		6		8		7		3		---		-1

Highest Recorded Temperature

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		17		6		6		6		8		8		13		17		16		15		12		8		8

Lowest Recorded Temperature

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-13		-12		-13		-11		-7		-4		-2		2		3		---		-3		-9		-13

Average Number of Days Above 50F/10C

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		63		---		---		---		---		2		13		25		20		3		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		123		25		23		24		14		2		---		---		---		---		1		12		22

Average Number of Days Below 25F/-3C

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		20		6		5		4		1		---		---		---		---		---		---		1		3

Average Precipitation

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		770		60		50		50		40		40		40		60		80		70		90		90		70

Average Precipitable Water

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		1.3		0.7		0.7		0.7		0.9		1.2		1.8		2.4		2.3		1.7		1.2		0.9		0.7

Average Number of Rainy Days

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		224		22		20		20		16		16		14		15		17		17		22		23		22

Most Rain Reported in a Day

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		130		30		50		30		30		30		40		40		50		50		130		40		30

Most Rain Reported in a Month

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1110		140		120		120		100		130		120		220		230		120		210		200		150

Least Rain Reported in a Month

Years on Record: 46

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		400		20		10		10		---		---		---		10		10		10		40		20		10

Average Snowfall

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		184		38		36		31		12		3		---		---		---		---		1		21		40

Average Number of Days With Snow

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		91		18		17		16		9		2		---		---		---		---		1		11		17

Deepest Snow Cover Reported

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		71		45		60		71		71		5		---		---		---		---		2		22		30

Most Snow Reported in a Day

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		195		38		29		10		9		---		---		---		---		10		28		28		38

Most Snow Reported in a Month

Years on Record: 43

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		402		139		83		116		33		16		---		---		---		---		10		74		124

Average Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		81.8		75.6		74.8		75.6		78.9		85.1		89.3		93.6		92.1		85.3		78		76.4		76.3

Average Morning Relative Humidity

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		81		73		74		75		78		84		90		92		90		82		78		76		77

Average Evening Relative Humidity

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		78		73		73		73		75		79		86		89		87		79		76		75		76

Average Dew Point

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		---		-5		-4		-3		-1		---		3		6		7		5		2		-1		-3

Average Wet Bulb

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		2		-2		-1		-1		---		2		5		7		8		7		5		1		-1

Heating Degree Days

Years on Record: 34

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5180		572.2		528.9		552.8		487.8		443.9		367.2		305.6		261.1		275		378.3		465.6		541.7

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.9		8.9		10.5		12.5		14.6		16.5		17.6		17.1		15.3		13.2		11.2		9.4		8.4

Average Number of Days With Fog

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		207		11		10		14		15		19		24		30		28		18		14		12		12

Average Possibility of Clouds

Years on Record: 10

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		86		81		85		87		86		93		96		97		91		80		80		78		82

Average Total Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		85.8		83.9		84.7		82.6		83.1		91.3		96.7		96.1		92.4		81.3		76.3		80.7		80.6

Average Opaque Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		82.6		80.5		81.1		76.8		77.5		89		94.4		94.2		90.3		78.8		73		76.1		78.9

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		2.7		5.2		9		13.2		15.8		15.1		14		11.9		9.8		6.4		3.1		2

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.5		1.8		3.1		5.3		7.5		9.1		9.6		9.1		7.7		5.5		3.6		2.1		1.4

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.9		4.9		8		11.1		13.8		14.4		13		12.4		11.4		11.2		9.2		5.3		4.1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8		4.3		7.1		9.2		11.6		12		9.5		8.7		8.1		9.5		8.2		4.6		3.6

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		2.7		5.2		9		13.2		15.8		15.1		14		11.9		9.8		6.4		3.1		2

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.8		2		3.3		5.6		7.5		9.2		10.1		9.5		8.1		5.9		4		2.3		1.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.8		6.2		9		13.4		16.1		17		16.2		14		14.1		14		10.6		6.5		5.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.8		5.7		8		12.1		15.3		16.8		15.5		11.3		12		13.1		9.7		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
Mj/m2		7.5		2.3		4.5		8		10.4		13.5		12.5		12.2		8.8		8.1		5.6		2.6		1.7

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		1.6		2.8		5		7		8.8		8.8		8.5		6.4		5.2		3.4		1.8		1.3

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.1		4		6.8		9.5		10.4		12.2		10.8		10.8		8.2		8.9		7.9		4		3.2

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.7		3.4		5.8		7.3		6.8		8.4		6.4		6.5		4.5		6.6		6.8		3.3		2.6