PETERSBURG, ALASKA

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Elevation: 3 meters Latitude: 56 49N Longitude: 132 57W

WEATHER

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Hourly Data

CURRENT CONDITIONS

Sunrise/Set

09:16 am

12:23 am
Local Time
6:12 am EDT
25 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		5.4		-3.2		-0.2		---		4.4		8.1		11.5		13.2		12.7		10.1		6.1		1.8		-1.1

Average High Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		9		-0.3		2.9		---		8.7		12.7		15.9		17.6		17		13.8		9.1		4.5		1.5

Average Low Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		1.8		-6.2		-3.3		---		0.2		3.5		7.1		8.9		8.4		6.3		3.2		-0.8		-3.6

Highest Recorded Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		28.3		16.7		14.4		20		23.3		28.3		28.3		26.1		23.9		19.4		17.8		19.4		28.3

Lowest Recorded Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-26.1		-24.4		-26.1		-10.6		-6.1		-1.1		2.8		0.6		-5.6		-11.1		-18.9		-23.3		-26.1

Average Number of Days Above 80F/26C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.6		---		---		---		---		---		0.4		0.2		---		---		---		---		---

Average Number of Days Above 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		12.6		---		---		---		---		0.6		3.5		4.5		3.6		0.3		---		---		---

Average Number of Days Above 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		81.4		---		0.1		---		0.9		8.7		17.5		23.2		22.2		8.1		0.6		---		---

Average Number of Days Above 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		177.5		0.9		0.7		1.8		13		26.4		29.7		31		31		28.4		12.3		1.6		0.8

Average Number of Days Above 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		283.6		11.2		11.7		21.7		29.1		31		30		31		31		30		29.7		17		10.3

Average Number of Days Below 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		365		31		28		31		30		31		30		31		31		30		31		30		31

Average Number of Days Below 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		365		31		28		31		30		31		30		31		31		30		31		30		31

Average Number of Days Below 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		333.6		31		28		31		30		30.6		26		18.3		20.3		26.8		30.6		30		31

Average Number of Days Below 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		216.1		30.1		27.5		30.3		27.1		15.3		1.9		0.1		0.9		6.7		19.1		27.5		29.8

Average Number of Days Below 32F/0C

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		136		28		24.5		20.6		14.4		4.2		0.1		---		---		1.1		6.1		15.4		21.6

Average Number of Days Below 20F/-6C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		25.3		7.1		5.7		2.5		0.2		---		---		---		---		---		0.3		3		6.5

Average Number of Days Below 10F/-12C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7.2		3.1		1.1		0.6		---		---		---		---		---		---		---		0.6		1.8

Average Number of Days Below 0F/-17C

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8.5		2.5		0.5		---		---		---		---		---		---		---		0.1		1		4.4

PRECIPITATION

Average Precipitation

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		2662		226		210		177		177		157		130		138		192		279		414		299		264

Average Number of Days With Precipitation

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		238		19		18		20		19		19		18		17		18		21		25		22		22

Most Reported Precipitation in a Month

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		682		470		432		301		282		324		222		304		355		521		682		680		520

Least Reported Precipitation in a Month

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		14		38		32		47		75		43		14		40		31		53		209		68		99

Most Precipitation Reported in a Day

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		141.7		97		109.7		63		63.2		55.9		53.1		72.6		101.8		106.2		106.7		141.7		95.5

Avg. No. of Days w/Precip. Above 0.1in/2.5mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		182.8		18		12.9		15.8		13.3		12.5		11.7		11.9		12.7		16.8		20.6		19		17.6

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

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		183		15		15		15		14		14		13		12		13		16		21		18		17

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

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		74		6		6		5		4		4		3		4		6		8		12		9		7

Avg. No. of Days w/Precip. Above 0.5in/13mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		76.9		8.6		5.9		6.2		3.9		3.8		3		3.3		4.8		8.6		10.9		9.5		8.4

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

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		26		2		2		2		1		1		1		1		2		3		5		3		3

Average Precipitable Water

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm.		1.3		0.9		0.9		0.8		0.9		1.2		1.6		2		2		1.7		1.2		1		0.9

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		272		78.5		51.8		46.7		7.4		---		---		---		---		---		1.3		23.1		63.2

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		30		7		5.6		5.4		0.6		---		---		---		---		---		0.4		4.2		6.8

Average Snow Cover

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		7		27		30		25		5		---		---		---		---		---		---		2		15

Most Snow Reported in a Month

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		235.2		235.2		186.9		157.2		52.1		---		---		---		---		---		27.9		81.3		185.4

Avg. No. of Days w/Snow Above 1in/2.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		22.1		5.5		4.1		4		0.4		---		---		---		---		---		0.3		3.1		4.7

Avg. No. of Days w/Snow Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9.9		3		1.9		1.7		0.1		---		---		---		---		---		---		1.3		1.9

Avg. No. of Days w/Snow Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.6		1.1		1.2		0.9		---		---		---		---		---		---		---		0.6		0.8

Avg. No. of Days w/Snowfall Above 10in/25cm

Years on Record: 30

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

Avg. # of Days w/Snow Depth Above 1in/2.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		64.7		17.7		14.4		11.6		1.5		---		---		---		---		---		0.2		6.5		12.8

Avg. # of Days w/Snow Depth Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		49.5		12.8		12.1		8.8		1.1		---		---		---		---		---		---		5		9.7

Avg. # of Days w/Snow Depth Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		38.1		9.4		10		7.2		0.8		---		---		---		---		---		---		3.7		7

Avg. # of Days w/Snow Depth Above 10in/25cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		22.9		6.3		6.3		4.2		0.2		---		---		---		---		---		---		2.1		3.8

HUMIDITY

Average Relative Humidity

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		80.9		83.2		81.8		78.3		75		72.4		76.4		81.2		82.9		85.2		85.2		85		83.8

DEGREE DAYS

Heating Degree Days

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2752.2		496.1		366.7		356.1		250.6		145.6		49.4		16.7		23.9		83.3		206.1		329.4		428.3

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		613		---		---		---		1		36		130		205		178		55		6		---		---

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		13.1		8.4		10.3		12.6		15.1		17.4		18.8		18		15.8		13.3		10.9		8.8		7.7

Average Total Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		76.5		79		74.6		74.2		68.8		69.1		73.5		78.9		74.2		81.6		83.8		82.2		78.2

Average Opaque Sky Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		69		72.2		66.3		65.4		56.7		59.3		66.1		72.2		66.8		74.9		77.8		76.3		73.5

WIND

Average Wind Speed

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		6.4		5.5		6.2		7.5		7.5		7.5		6.5		5.4		5.2		5.6		6.4		6.2		6.4

SOLAR RADIATION

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.2		2.1		4.6		9		15		19.3		20.4		18.2		14.5		9.5		5.5		2.7		1.4

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.4		1.4		2.8		5.1		7.3		9.3		9.9		9.4		8		5.4		3.3		1.8		1

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.6		5.1		8.6		13		17.2		17.8		17.6		16.2		14.4		11.4		8.6		5.8		3.6

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.2		4.4		7.3		10.9		16.6		19.1		19.6		16.6		13.1		10.3		7.7		5		3.4

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.2		2.1		4.6		9		15		19.3		20.4		18.2		14.5		9.5		5.5		2.7		1.4

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.6		1.5		3.1		5.3		7.3		9.4		10		9.5		8.1		6		3.7		2		1

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.9		5.8		10		14.8		21.1		19.8		21.3		19.3		16.9		15.8		10.4		7.3		4

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.5		5		8.7		12.8		20.8		23		27.5		22.9		17.5		15.9		9.7		6.5		3.8

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.5		1.7		3.4		7		13.2		16.3		17.5		15.4		11.8		7.6		4.4		2		1.3

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.2		1.2		2.3		4.6		7.2		9.3		9.8		9.3		7.7		4.9		2.8		1.4		0.9

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.1		3.8		5.6		9		14.6		14.8		15.1		13.5		11.3		8.5		6.4		3.9		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		7.7		3.1		4.4		6.7		12.8		13.4		14.3		11.4		8.3		6.4		5.4		3.2		3

NEARBY - MAP

NEARBY - LIST

Port Alexander, Alaska (0 mi / 1 km)
Saint John Harbor, Alaska (24 mi / 39 km)
Wrangell, Alaska (32 mi / 52 km)
Five Fingers, Alaska (39 mi / 64 km)
Kake, Alaska (39 mi / 63 km)

GEOBA.SE

Petersburg, Alaska