Average 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

Average Annual Temperatures in Washington

Olympic Peninsula & West Coast

San Juan Islands, Puget Sound & South

Cascade Mountains

Eastern Washington State

Reference

More Washington Weather Information