Average Annual Temperatures in Washington

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Average annual temperatures for cities, towns, parks and lakes throughout Washington are listed below in degrees Fahrenheit and Celsius.

The tables give the normals for maximum and minimum yearly temperatures based on weather data collected from 1981 to 2010.

You can jump to a separate table for each region of the state: Olympic Peninsula & West Coast, San Juan Islands & Puget Sound, Cascade Mountains and Eastern Washington.

Olympic Peninsula & West Coast

Average annual temperatures
High °F Low °F Place High °C Low °C
58 44 Aberdeen 15  7
59 41 Clearwater 15  5
59 42 Forks 15  5
58 41 Friday Harbor, San Juan Island 14  5
58 44 Grayland 14  6
57 43 Long Beach 14  6
55 45 Port Angeles 13  7

San Juan Islands, Puget Sound & South

Average temperatures for the year
High °F Low °F Place High °C Low °C
60 44 Anacortes 15  7
58 42 Bellingham 14  6
60 44 Bremerton 16  6
61 43 Everett 16  6
62 43 Longview 17  6
58 42 Olga, Orcas Island 15  6
61 41 Olympia 16  5
59 45 Port Townsend 15  7
61 46 Seattle 16  8
62 45 Tacoma 17  7
62 42 Vancouver 17  6

Cascade Mountains

Average yearly temperatures
High °F Low °F Place High °C Low °C
56 39 Baker Lake Dam 14  4
59 41 Baring 15  5
62 41 Darrington 17  5
60 35 Mt Adams Ranger Station 15  2
47 31 Mt Rainier Paradise Ranger Station   8 -1
58 41 Mud Mountain Lake Dam 15  5
57 41 Ross Dam 14  5
48 35 Stampede Pass   9  2

Eastern Washington State

Annual average temperature
High °F Low °F Place High °C Low °C
57 35 Boundary Dam 14  2
60 42 Chelan 16  5
60 39 Coulee Dam 16  4
66 44 Kennewick 19  7
61 35 Leavenworth 16  2
58 37 Pullman 15  3
58 39 Spokane 14  4
63 44 Walla Walla 17  7
63 39 Wenatchee 17  4
60 32 Winthrop 15  0
63 36 Yakima 17  2
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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