Average Temperatures for Washington in April





Average temperatures for April at 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.

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

Olympic Peninsula & West Coast

Average April temperatures
High °F Low °F Place High °C Low °C
57 41 Aberdeen 14 5
59 39 Clearwater 15 4
59 38 Forks 15 3
57 41 Friday Harbor, San Juan Island 14 5
59 33 Grayland 15 0
55 40 Long Beach 13 5
54 42 Port Angeles 12 6

San Juan Islands, Puget Sound & South

Average daily temperatures in April
High °F Low °F Place High °C Low °C
59 43 Anacortes 15 6
58 42 Bellingham 14 5
59 41 Bremerton 15 5
60 39 Centralia 15 4
56 43 Everett 13 6
62 40 Longview 17 5
58 41 Mount Vernon 15 5
64 40 Oak Harbor, Whidbey Island 18 5
56 44 Olga, Orcas Island 13 7
59 38 Olympia 15 3
58 43 Port Townsend 14 6
59 43 Seattle 15 6
60 38 Shelton 15 3
60 44 Tacoma 15 7
59 38 Vancouver 15 4

Cascade Mountains

April temperatures: daily averages
High °F Low °F Place High °C Low °C
56 36 Baker Lake Dam 13 2
59 38 Baring 15 3
59 38 Darrington 15 3
58 33 Mt Adams Ranger Station 14 1
40 26 Mt Rainier Paradise Ranger Station 4 -3
56 38 Mud Mountain Lake Dam 13 3
56 38 Ross Dam 13 3
46 33 Stampede Pass 8 0

Eastern Washington State

Average April temperatures
High °F Low °F Place High °C Low °C
58 33 Boundary Dam 14 0
62 38 Chelan 17 3
61 38 Coulee Dam 16 3
66 42 Kennewick 19 6
61 32 Leavenworth 16 0
64 37 Moses Lake 18 3
57 35 Pullman 14 2
57 37 Spokane 14 3
63 43 Walla Walla 17 6
58 43 Wenatchee 15 6
61 32 Winthrop 16 0
65 35 Yakima 18 2
Reference

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

Washington Temperatures
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