MOUNT VERNON, WASHINGTON

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Elevation: 1 foot Latitude: 48 26N Longitude: 122 23W

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CURRENT CONDITIONS

Sunrise/Set

08:58 am

11:15 pm
Local Time
6:55 pm EDT
25 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °C ] °F

TEMPERATURE

Average Temperature

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		50.5		39.6		42.1		44.9		48.8		54.3		58.7		61.9		62.3		57.8		50.7		44.2		40.2

Average High Temperature

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		59.1		45.5		49.2		52.8		57.7		63.9		68.6		73.2		73.8		68.5		59.4		50.7		45.9

Average Low Temperature

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		41.8		33.6		35.1		37.1		39.9		44.7		48.8		50.6		50.9		47		41.9		37.8		34.6

Highest Recorded Temperature

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		98		66		71		80		80		89		92		94		98		89		83		71		65

Lowest Recorded Temperature

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-4		-4		8		9		25		32		38		38		36		30		19		7		-1

Average Number of Days Above 90F/32C

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.6		---		---		---		---		---		0.1		0.3		0.2		---		---		---		---

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		13.1		---		---		---		---		0.3		1.7		4.3		5.4		1.3		---		---		---

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		76		---		---		0.1		1.2		5.6		10.8		20.9		24.4		11.8		1.2		---		---

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		171		0.6		1.1		3.7		10.9		22.3		28.2		30.6		31		28.2		12.7		1.6		0.2

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		284.3		10.6		13.3		24		28.6		30.9		30		31		31		30		30		17.6		7.4

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		351.4		26.2		26.2		30.6		30		31		30		31		31		30		30.9		28.9		25.5

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		363.8		31		28		31		30		31		29.9		30.6		30.4		29.9		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		277.5		30.6		27.6		30.6		29.4		25.3		13.7		7.3		8.1		19.1		26.5		28.4		30.7

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		127.5		21.2		20.1		18.5		12.5		2.9		0.1		---		---		1.6		11.7		15.9		22.9

Average Number of Days Below 32F/0C

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		55.7		12.8		10.5		7.5		2.2		0.1		---		---		---		0.2		2.7		7.9		12

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		3.7		1		0.9		0.1		---		---		---		---		---		---		---		0.6		1.1

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		0.6		0.1		0.1		---		---		---		---		---		---		---		---		0.1		0.2

Average Number of Days Below 0F/-17C

Years on Record: 50

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

PRECIPITATION

Average Precipitation

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		32.4		4		2.8		2.7		2.4		2.2		1.8		1.2		1.5		1.9		3.2		4.5		4.1

Average Number of Days With Precipitation

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		155		18		15		16		14		11		10		6		6		9		14		18		18

Most Reported Precipitation in a Month

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		13.6		10.5		7.1		5.2		4.6		4.6		4.8		3.4		6.3		4.9		7.8		13.6		7.8

Least Reported Precipitation in a Month

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		0.6		0.5		0.8		0.2		0.5		0.1		---		---		0.2		0.5		1.1		0.9

Most Precipitation Reported in a Day

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		3		2.1		1.6		1.2		1.8		1.9		2		1.6		2.8		2.4		1.5		3		2

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		90.2		10.8		8		9.3		7.5		7.3		5.4		3.3		2.8		3.9		8.7		12.8		10.4

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

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		93		11		9		9		8		7		5		3		3		5		9		12		12

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

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		16		2		1		1		1		1		1		1		1		1		2		2		2

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		17		2.1		1.1		1.4		1		1.3		1.2		0.8		0.9		0.9		2		2.7		1.6

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

Years on Record: 50

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

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		3.7		1.5		0.5		0.4		---		---		---		---		---		---		---		0.1		1.2

Most Snow Reported in a Month

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		12.6		11.5		6		5.7		0.5		---		---		---		---		---		---		2		12.6

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5063		736		629		584		462		309		172		86		70		201		437		606		772

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		52		---		---		---		---		1		5		20		23		3		---		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1687		7		6		14		41		164		284		400		418		253		77		18		3

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		9.5		10.8		12.5		14.3		15.9		16.7		16.3		14.8		13		11.3		9.8		9

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		3.6		1.3		2.2		3.2		4.5		5.3		5.7		6.2		5.4		4.1		2.4		1.4		1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		0.8		1.1		1.7		2.1		2.5		2.7		2.6		2.2		1.8		1.2		0.8		0.7

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.9		2.1		3.2		3.9		4.7		4.8		4.9		5.5		5.4		4.8		3.3		2.3		1.9

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.8		1.9		2.9		3.4		4.4		4.6		5		6		5.6		4.7		3.1		2		1.7

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.6		1.3		2.2		3.2		4.5		5.3		5.7		6.2		5.4		4.1		2.4		1.4		1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.8		0.9		1.3		1.8		2.1		2.5		2.7		2.9		2.3		2		1.4		1		0.7

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.7		2.6		3.9		4.9		5.8		5.9		5.8		6.7		6.1		5.7		4.3		2.9		2.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.9		2.4		3.5		4.6		6.1		6.6		6.7		7.7		6.7		5.7		4.2		2.6		2

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3		1.1		1.7		2.9		3.9		4.7		4.8		4.8		4.8		3.4		2		1.2		0.9

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.7		1		1.6		2.1		2.5		2.6		2.5		2.2		1.7		1.1		0.7		0.6

Minimum 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		1.7		2.4		3.5		3.9		4.3		4.1		4.3		4.8		3.9		2.6		1.8		1.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.8		1.5		2.1		2.9		3.2		3.6		3.4		3.7		4.5		3.5		2.3		1.5		1.3

NEARBY - MAP

NEARBY - LIST

Clearlake, Washington (8 mi / 14 km)
Sedro Woolley, Washington (8 mi / 14 km)
Blakely Island, Washington (12 mi / 19 km)
Ault Field, Washington (14 mi / 22 km)
Oak Harbor, Washington (14 mi / 22 km)

GEOBA.SE

Mount Vernon, Washington