Average Temperatures for Washington in July

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

The tables give the normals for maximum and minimum monthly 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 July temperatures
High °F Low °F Place High °C Low °C
68 54 Aberdeen 20 12
71 50 Clearwater 22 10
72 50 Forks 22 10
71 49 Friday Harbor, San Juan Island 21 10
66 52 Grayland 19 11
65 52 Long Beach 18 11
66 54 Port Angeles 19 12

San Juan Islands, Puget Sound & South

Average daily temperatures in July
High °F Low °F Place High °C Low °C
73 54 Anacortes 23 12
71 54 Bellingham 22 12
76 54 Bremerton 24 12
75 54 Everett 24 12
78 53 Longview 25 12
71 51 Olga, Orcas Island 22 10
77 51 Olympia 25 10
73 53 Port Townsend 23 12
76 57 Seattle 24 14
77 56 Tacoma 25 13
78 54 Vancouver 26 12

Cascade Mountains

July temperatures: daily averages
High °F Low °F Place High °C Low °C
74 51 Baker Lake Dam 23 11
76 52 Baring 24 11
80 53 Darrington 27 12
83 49 Mt Adams Ranger Station 29   9
63 43 Mt Rainier Paradise Ranger Station 17   6
73 52 Mud Mountain Lake Dam 23 11
78 54 Ross Dam 25 12
67 48 Stampede Pass 20   9

Eastern Washington State

Average July temperatures
High °F Low °F Place High °C Low °C
82 51 Boundary Dam 28 11
85 61 Chelan 29 16
87 58 Coulee Dam 31 14
90 62 Kennewick 32 17
87 52 Leavenworth 31 11
82 50 Pullman 28 10
83 56 Spokane 29 14
89 61 Walla Walla 32 16
88 57 Wenatchee 31 14
86 50 Winthrop 30 10
88 53 Yakima 31 12
Reference

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

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