DUTCH HARBOR, ALASKA

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Elevation: 13 feet Latitude: 53 53N Longitude: 166 32W

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

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TEMPERATURE

Average Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		41		32		32		34		36		41		47		52		54		49		42		37		34

Average High Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		46		36		36		38		41		46		52		57		60		54		47		41		38

Average Low Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		36		28		27		29		31		36		41		46		47		44		37		32		29

Highest Recorded Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		80		58		60		69		61		66		72		79		80		80		63		67		56

Lowest Recorded Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		5		6		5		5		13		20		30		36		28		29		22		16		10

Average Number of Days Above 50F/10C

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		128		1		1		1		6		20		30		31		25		9		2		1		1

Average Number of Days Below 32F/0C

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		136		23		22		23		17		6		1		---		---		1		5		16		22

Average Number of Days Below 20F/-6C

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		12		4		3		3		---		---		---		---		---		---		---		---		2

PRECIPITATION

Average Precipitation

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		54.7		5.9		6.6		4.5		4.2		4.4		2.7		1.7		2.1		4.7		7.4		5.4		6.2

PRECIPITATION - RAIN

Average Number of Rainy Days

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		208		20		18		19		18		17		12		12		13		17		22		19		21

Most Rain Reported in a Day

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		7.6		2.8		7.6		2.5		3.5		3.6		3		4		2.1		2.4		3.2		4.7		2.1

Most Rain Reported in a Month

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		83		14		22.2		12.2		8.1		11.1		6.2		5.8		4.3		10.2		16		11.8		15.6

Least Rain Reported in a Month

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		5.4		0.7		0.9		---		---		0.2		0.1		---		0.1		---		0.1		0.1		0.6

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		71.9		18.4		18.8		10.7		7.6		0.2		---		---		---		---		0.2		6		14.6

Average Number of Days With Snow

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		62		13		12		11		7		1		---		---		---		---		1		6		11

Deepest Snow Cover Reported

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		56		27		56		56		15		1		---		---		---		---		---		5		20

Most Snow Reported in a Day

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		89.7		28		7.1		5.5		1.9		---		---		---		---		1.5		5.5		12.2		28

Most Snow Reported in a Month

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		191		52.6		57.2		39.1		18		2		---		---		---		---		1.5		20.2		33.5

HUMIDITY

Average Morning Relative Humidity

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		84.7		81.2		83.3		84.4		85		85.9		87.3		89.2		87.2		84.8		81.5		81.5		82.1

Average Evening Relative Humidity

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		79.3		79.8		81.1		78.6		79.1		78.2		80		80.7		79.6		78.8		77.1		78.3		80.3

Average Dew Point

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		35		26		26		27		31		35		40		46		48		42		36		31		28

Average Wet Bulb

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		38		29		29		30		34		38		43		48		50		44		39		34		31

DEGREE DAYS

Heating Degree Days

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9999.9		1147		1064		1080		1020		899		720		589		558		630		868		990		1116

Growing Degree Days

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		155		---		---		---		---		---		---		46.5		108.5		---		---		---		---

VISIBILITY

Average Number of Days With Fog

Years on Record: 5

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		92		7		4		4		4		4		12		20		12		9		8		5		3

Average Possibility of Clouds

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		89.2		84.1		91.6		85.6		91.1		92.5		88.8		93		87.6		93.5		89		86.5		86.4

WIND

Average Wind Speed

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		8		13		12		12		9		9		8		8		10		13		12		11		11

NEARBY - MAP

NEARBY - LIST

Akutan, Alaska (1 mi / 1 km)
Nikolski, Alaska (66 mi / 106 km)
Cape Lutke, Alaska (81 mi / 131 km)
False Pass, Alaska (81 mi / 130 km)
Cold Bay, Alaska (177 mi / 286 km)

GEOBA.SE

Dutch Harbor, Alaska

WEATHER FORECAST