Average August Temperatures for Washington

Average temperatures for August 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.

Olympic Peninsula & West Coast

Average August temperatures
High °F	Low °F	Place	High °C	Low °C
69	54	Aberdeen	21	12
72	49	Clearwater	22	10
73	51	Forks	23	10
72	48	Friday Harbor, San Juan Island	22	9
67	52	Grayland	19	11
66	52	Long Beach	19	11
67	54	Port Angeles	20	12

Average daily temperatures in August
High °F	Low °F	Place	High °C	Low °C
74	54	Anacortes	23	12
72	53	Bellingham	22	12
77	55	Bremerton	25	13
76	54	Everett	24	12
79	53	Longview	26	12
71	51	Olga, Orcas Island	22	10
78	51	Olympia	25	10
73	53	Port Townsend	23	12
76	57	Seattle	25	14
77	56	Tacoma	25	13
79	53	Vancouver	26	11

August temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
75	51	Baker Lake Dam	24	11
76	52	Baring	25	11
81	53	Darrington	27	11
83	48	Mt Adams Ranger Station	29	9
65	44	Mt Rainier Paradise Ranger Station	18	7
74	52	Mud Mountain Lake Dam	23	11
78	55	Ross Dam	26	13
68	49	Stampede Pass	20	10

Average August temperatures
High °F	Low °F	Place	High °C	Low °C
83	49	Boundary Dam	29	10
85	60	Chelan	30	16
87	57	Coulee Dam	30	14
89	61	Kennewick	32	16
88	51	Leavenworth	31	11
84	50	Pullman	29	10
83	56	Spokane	28	13
88	60	Walla Walla	31	16
88	56	Wenatchee	31	13
86	49	Winthrop	30	10
87	52	Yakima	30	11