MERCER ISLAND, WASHINGTON

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Elevation: 69 meters Latitude: 47 32N Longitude: 122 18W

WEATHER

Monthly - Summary

CURRENT CONDITIONS

Sunrise/Set

08:55 am

11:17 pm
Local Time
4:11 pm EDT
28 April, 2024

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MONTHLY - WEATHER AVERAGES SUMMARY [ Show All Data ]

[ °F ] °C

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		11.7		5.7		6.3		8.3		10.7		13.5		16.7		19.3		19.4		16.4		11.7		7.6		4.9

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		15.9		8.8		10.2		12.3		14.8		18.3		21.3		24.3		24.6		21.3		15.6		10.9		7.9

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		7.6		2.6		2.4		4.4		6.6		8.6		12		14.2		14.3		11.6		7.7		4.3		1.9

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		1013.5		144.8		99.1		96.5		73.7		68.6		38.1		20.3		25.4		40.6		94		165.1		144.8

Average Number of Days With Precipitation

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		159		20		16		17		14		10		9		5		7		8		15		18		20

Highest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		27.2		11.1		13.3		15.1		17.3		21.8		24.3		27.2		26.7		24.4		18.6		12.9		9.9

Lowest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-1.9		-1.3		-1.9		1.3		3.3		6.7		9.4		11.7		11.3		8.7		6.1		-0.6		-0.9

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		15.8		16.6		16.1		14.7		13		11.3		9.8		9.1

Average Number of Days Above 90F/32C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.5		---		---		---		---		---		0.2		1		0.3		---		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		27.1		6.3		6.1		2.3		0.1		0.3		---		---		---		---		0.1		3.8		8.1

Average Snowfall

Years on Record: 18

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		45.7		11.7		4.8		3.3		---		---		---		---		---		---		---		2.3		23.6

NEARBY - MAP

NEARBY - LIST

Bellevue, Washington (4 mi / 7 km)
Sea-Tac, Washington (5 mi / 9 km)
Seahurst, Washington (6 mi / 11 km)
Medina, Washington (8 mi / 12 km)
Seattle, Washington (8 mi / 12 km)

GEOBA.SE

Mercer Island, Washington