PETERSBURG, ALASKA

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Elevation: 11 feet Latitude: 56 49N Longitude: 132 57W

WEATHER

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CURRENT CONDITIONS

Sunrise/Set

09:16 am

12:23 am
Local Time
3:44 pm EDT
25 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °C ] °F

TEMPERATURE

Average Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		41.7		26.2		31.6		---		40		46.6		52.7		55.8		54.9		50.2		43		35.3		30.1

Average High Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		48.2		31.5		37.2		---		47.6		54.9		60.7		63.6		62.6		56.9		48.3		40.1		34.7

Average Low Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		35.2		20.9		26.1		---		32.3		38.3		44.7		48		47.2		43.4		37.7		30.5		25.6

Highest Recorded Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		83		62		58		68		74		83		83		79		75		67		64		67		83

Lowest Recorded Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-15		-12		-15		13		21		30		37		33		22		12		-2		-10		-15

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
in		104.8		8.9		8.3		7		7		6.2		5.1		5.4		7.6		11		16.3		11.8		10.4

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
in		26.9		18.5		17		11.8		11.1		12.8		8.8		11.9		14		20.5		26.9		26.8		20.5

Least Reported Precipitation in a Month

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		0.5		1.5		1.3		1.8		2.9		1.7		0.5		1.6		1.2		2.1		8.2		2.7		3.9

Most Precipitation Reported in a Day

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		5.6		3.8		4.3		2.5		2.5		2.2		2.1		2.9		4		4.2		4.2		5.6		3.8

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
in.		0.5		0.3		0.3		0.3		0.4		0.5		0.6		0.8		0.8		0.7		0.5		0.4		0.3

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		107.1		30.9		20.4		18.4		2.9		---		---		---		---		---		0.5		9.1		24.9

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
in.		3		11		12		10		2		---		---		---		---		---		---		1		6

Most Snow Reported in a Month

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		92.6		92.6		73.6		61.9		20.5		---		---		---		---		---		11		32		73

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		4954		893		660		641		451		262		89		30		43		150		371		593		771

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
mph		4		3.4		3.9		4.6		4.6		4.6		4		3.3		3.2		3.5		4		3.9		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
kWh/m2		2.8		0.6		1.3		2.5		4.2		5.4		5.7		5.1		4		2.7		1.5		0.7		0.4

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		2.8		2.6		2.2		1.5		0.9		0.5		0.3

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.2		1.4		2.4		3.6		4.8		4.9		4.9		4.5		4		3.2		2.4		1.6		1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.1		1.2		2		3		4.6		5.3		5.4		4.6		3.7		2.9		2.2		1.4		1

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.8		0.6		1.3		2.5		4.2		5.4		5.7		5.1		4		2.7		1.5		0.7		0.4

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.4		0.9		1.5		2		2.6		2.8		2.6		2.2		1.7		1		0.6		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		3.9		1.6		2.8		4.1		5.9		5.5		5.9		5.4		4.7		4.4		2.9		2		1.1

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4		1.4		2.4		3.6		5.8		6.4		7.7		6.4		4.9		4.4		2.7		1.8		1.1

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.4		0.5		0.9		2		3.7		4.5		4.9		4.3		3.3		2.1		1.2		0.6		0.4

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		2.6		2.7		2.6		2.2		1.4		0.8		0.4		0.3

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.5		1.1		1.6		2.5		4.1		4.1		4.2		3.8		3.2		2.4		1.8		1.1		0.9

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.1		0.9		1.2		1.9		3.6		3.7		4		3.2		2.3		1.8		1.5		0.9		0.8

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