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Washington Weather


Washington State's weather varies greatly from west to east, as the west is normally mild and humid, while east of the Cascades a cooler, drier climate prevails.

The average annual temperature ranges from near 51 degrees along the Pacific Ocean coastline, to near 40 degrees in the far northeast.

Western Washington is mild because of the warm currents coming off the North Pacific Ocean. This area has frequent cloud cover, considerable fog and long-lasting drizzles. Summers are much sunnier, yet still mild, with an average high near 70 degrees.

Along the western edges of the Olympic Peninsula, up to 160 inches of annual rain is the norm, making it the wettest area of the 48 continental states. Weeks or even months may pass without a clear, sunny day.

The western slopes of the Cascade Range receive some of the heaviest annual snowfall in the country (over 200 inches annually).

For an interesting look at Washington precipitation, view this precipitation map.

Current Weather Conditions:

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Seasonal Temperature Averages:

HIGH TEMPERATURES ( Fahrenheit/Celsius )
(Jan) 44/7 (Feb) 47/8 (Mar) 51/11 (Apr) 57/14
(May) 62/17 (Jun) 68/20 (Jul) 73/23 (Aug) 78/25
(Sep) 76/24 (Oct) 68/20 (Nov) 55/13(Dec) 46/8

LOW TEMPERATURES ( Fahrenheit/Celsius )
(Jan) 32/0 (Feb) 32/0 (Mar) 33/0 (Apr) 37/3
(May) 39/4 (Jun) 45/7 (Jul) 49/9(Aug) 50/10
(Sep) 48/9 (Oct) 41/5 (Nov) 38/3(Dec) 34/1

Washington Photographs

Emmons Glacier on Mt. Rainier, Washington

Emmons Glacier on Mt. Rainier...
by Cheyenne Rouse
Buy This at Allposters.com

Washington Cities, Counties & Area Codes

City County Area Code
Othello Adams 509
Clarkston Asotin 509
Kennewick Benton 509
Wenatchee Chelan 509
Port Angeles Clallam 360
Vancouver Clark 360
Dayton Columbia 509
Longview Cowlitz 360
East Wenatchee Douglas 509
Republic Ferry 509
Pasco Franklin 509
Pomeroy Garfield 509
Moses Lake Grant 509
Aberdeen Grays Harbor 360
Oak Harbor Island 360
Port Townsend Jefferson 360
Auburn King 253
Bellevue King 425
Seattle King 206
Renton King 425
Kent King 253
Bremerton Kitsap 360
Ellensburg Kittitas 509
Goldendale Klickitat 509
Centralia Lewis 360
Davenport Lincoln 509
Shelton Mason 360
Omak Okanogan 509
Raymond Pacific 360
Newport Pend Oreille 509
Tacoma Pierce 253
Puyallup Pierce 253
Friday Harbor San Juan 360
Mount Vernon Skagit 360
Stevenson Skamania 509
Everett Snohomish 425
Spokane Spokane 509
Colville Stevens 509
Olympia Thurston 360
Cathlamet Wahkiakum 360
Walla Walla Walla Walla 509
Bellingham Whatcom 360
Pullman Whitman 509
Yakima Yakima 509

About the Author

John Moen is a cartographer who along with his wife are the orignal founders of worldatlas.com. He and his wife, Chris Woolwine-Moen, produced thousands of award-winning maps that are used all over the world and content that aids students, teachers, travelers and parents with their geography and map questions. Today, it's one of the most popular educational sites on the web.

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This page was last updated on July 10, 2020.