MATTAWA, WASHINGTON

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Elevation: 276 meters Latitude: 46 50N Longitude: 119 40W

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CURRENT CONDITIONS

Sunrise/Set

08:43 am

11:08 pm
Local Time
9:08 pm EDT
30 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		11.4		-0.6		2.8		7.1		11.3		16.1		20.2		23.9		23.1		17.8		11.1		4.1		-0.2

Average High Temperature

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		18.7		3.8		8.3		14.1		19.2		24.3		28.5		33.3		32.5		27.2		19.3		9.5		3.9

Average Low Temperature

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		4.2		-5		-2.7		0.1		3.5		7.9		11.8		14.7		13.8		8.5		2.9		-1.3		-4.3

Highest Recorded Temperature

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		46.1		20.6		21.7		27.8		35.6		40.6		42.8		45		46.1		39.4		31.7		23.9		21.1

Lowest Recorded Temperature

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-33.3		-33.3		-31.1		-16.1		-6.1		-4.4		1.1		5		3.9		-3.3		-12.8		-28.3		-28.3

Average Number of Days Above 100F/38C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9.6		---		---		---		---		0.1		0.7		5		3.6		0.3		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		51.7		---		---		---		0.1		2.6		7.2		19.2		17.2		5.3		---		---		---

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		105		---		---		---		1.4		9.5		19.2		28.3		28.6		16.3		1.7		---		---

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		161.1		---		---		1.7		9.6		22.2		28.5		30.9		31		26.9		10		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		221.6		0.4		1.5		13.5		24.7		30.5		30		31		31		29.9		24.9		3.9		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		278		5.3		11.9		27.4		30		31		30		31		31		30		30.1		16.1		4.3

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		320.8		15.6		22.7		30.7		30		31		30		31		31		30		30.9		25.6		12.3

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		363.3		31		28		31		30		31		29.9		30		30.5		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		338.8		31		28		31		30		30.4		26		19.6		22.2		28.7		30.9		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		267.9		31		27.9		30.8		28.8		22.5		9.4		2.4		5.2		20		29.2		29.7		30.9

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		188.3		30.1		26.5		25.9		18.5		6.7		0.3		---		---		4.1		19.9		26		30.4

Average Number of Days Below 32F/0C

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		123.8		26.3		20.9		16.5		6		0.6		---		---		---		0.6		8.8		18.2		25.9

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		24.8		6.7		4		0.9		---		---		---		---		---		---		0.4		3.3		9.5

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		6.9		2.2		1.3		0.1		---		---		---		---		---		---		---		0.8		2.7

Average Number of Days Below 0F/-17C

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.9		1.5		0.4		---		---		---		---		---		---		---		---		0.2		0.8

PRECIPITATION

Average Precipitation

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		196		26		18		18		13		13		14		7		7		8		13		27		31

Average Number of Days With Precipitation

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		53		7		5		5		4		4		3		2		2		2		4		7		8

Most Reported Precipitation in a Month

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		104		68		62		62		48		39		55		64		35		44		43		104		88

Least Reported Precipitation in a Month

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		2		---		---		---		---		---		---		---		---		---		---		1

Most Precipitation Reported in a Day

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		33.8		28.7		21.6		21.6		20.3		33.8		33		16		21.3		19.3		27.4		26.7		25.1

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		26.3		3.6		2.6		2.6		1.7		1.7		1.7		0.8		0.8		1.1		1.9		3.7		4.1

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

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		29		4		3		3		2		2		2		1		1		1		2		4		4

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		1.9		0.1		0.1		0.2		0.1		0.1		0.2		0.1		0.1		0.1		0.2		0.3		0.3

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		10.2		5.6		0.5		0.2		---		---		---		---		---		---		---		0.5		3.3

Average Snow Cover

Years on Record: 48

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		---		2		---		---		---		---		---		---		---		---		---		---		2

Most Snow Reported in a Month

Years on Record: 58

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		50.8		50.8		7.6		5.1		---		---		---		---		---		---		1.3		8.1		36.1

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5274		992		774		606		377		168		33		3		5		94		413		745		1063

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		830		---		---		---		2		37		131		314		272		71		2		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3094		1		2		25		113		338		547		776		732		429		117		13		1

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		9.6		10.9		12.5		14.2		15.7		16.5		16		14.7		13		11.3		9.9		9.2

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		14.2		4.8		8.1		13		17.8		21.4		23.9		24.9		21.4		16.1		10		5.3		3.9

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.2		2.8		4.2		6.3		7.6		8.9		9.4		9.5		8.2		6.9		4.9		3.1		2.4

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.5		8		11.8		16		18.7		19.7		20.7		22.2		21.3		18.8		13.8		8.6		6.6

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.7		7		10.7		14.5		18.6		20.9		23.6		25.2		22.8		18.5		13.1		7.5		5.9

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.2		4.8		8.1		13		17.8		21.4		23.9		24.9		21.4		16.1		10		5.3		3.9

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.8		3.2		4.8		6.8		7.7		9.3		10		11.4		9.3		7.4		5.3		3.6		2.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.1		10		14.7		18.9		21.6		23.2		23.6		25.4		23.8		21.4		16.3		11.1		7.3

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.8		8.6		13.9		17.9		22.8		26.4		28		28.1		25.4		21.5		16.1		10		6.7

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.3		4.4		6.6		11.6		15.3		19		21.2		19.8		19.1		13.6		8.9		4.6		3.1

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.9		2.7		3.6		6		7.5		8.8		9.3		9		7.9		6.4		4.5		2.8		2

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.2		7		9.4		13.9		15.8		17.4		18.4		17.6		19		15.6		12		7.2		4.8

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.4		6.3		8.1		12		13.9		16.8		19.1		17.5		19.5		14.5		11.2		6.1		4.1

NEARBY - MAP

NEARBY - LIST

Beverly, Washington (16 mi / 27 km)
Warden, Washington (24 mi / 38 km)
Quincy, Washington (25 mi / 41 km)
Othello, Washington (28 mi / 45 km)
Moses Lake North, Washington (29 mi / 46 km)

GEOBA.SE

Mattawa, Washington