Average Annual Temperatures in Washington





Average annual temperatures for cities and other locations throughout Washington are listed below in degrees Fahrenheit and Celsius.

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.

Place name links take you to more detailed temperature information for that location.

The tables give the normals for maximum and minimum yearly temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.

Olympic Peninsula & West Coast

Average annual temperatures
High °F Low °F Place High °C Low °C
58 44 Aberdeen 15 7
60 41 Clearwater 15 5
60 41 Forks 15 5
59 43 Friday Harbor, San Juan Island 15 6
61 35 Grayland 16 2
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
61 45 Anacortes 16 7
59 43 Bellingham 15 6
61 44 Bremerton 16 7
61 42 Centralia 16 6
58 45 Everett 14 7
63 43 Longview 17 6
60 43 Mount Vernon 15 6
63 42 Oak Harbor, Whidbey Island 17 6
56 46 Olga, Orcas Island 13 8
61 40 Olympia 16 5
59 45 Port Townsend 15 7
61 46 Seattle 16 8
62 41 Shelton 16 5
61 46 Tacoma 16 8
61 41 Vancouver 16 5

Cascade Mountains

Average yearly temperatures
High °F Low °F Place High °C Low °C
56 39 Baker Lake Dam 13 4
59 41 Baring 15 5
59 41 Darrington 15 5
60 36 Mt Adams Ranger Station 15 2
45 31 Mt Rainier Paradise Ranger Station 7 0
59 41 Mud Mountain Lake Dam 15 5
57 41 Ross Dam 14 5
49 36 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
61 39 Chelan 16 4
60 40 Coulee Dam 16 4
66 44 Kennewick 19 7
61 34 Leavenworth 16 1
63 39 Moses Lake 17 4
60 37 Pullman 15 3
58 39 Spokane 14 4
64 45 Walla Walla 18 7
59 45 Wenatchee 15 7
59 33 Winthrop 15 0
64 37 Yakima 18 3
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Washington Temperatures
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