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Weather, Climate & Temperatures

Best time to travel
During the summer.
The weather patterns are heavily influenced by the Pacific Jet Stream. Summers are warm and winters mild but wet in coastal areas.
During winter, expect heavy snowfall and winter storms in the mountain regions of Washington State. See also our Weblink to the Department of Transportation further below.

Average temperatures in Seattle, Washington State, in degrees Fahrenheit (and in Celsius)

Jan46 (7,7)37 (2,8)
Feb49 (9,4)38 (3,2)
Mar53 (11,7)40 (4,4)
Apr59 (15)44 (6,6)
May66 (18,8)49 (9,4)
Jun70 (21,1)53 (11,7)
Jul75 (23,8)56 (13,3)
Aug74 (23,3)56 (13,3)
Sep69 (20,5)53 (11,7)
Oct60 (15,5)48 (8,8)
Nov52 (11,1)42 (5,5)
Dec48 (8,8)39 (3,9)


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Document Information
Source: National Park Service; magazineUSA.com
Last modified: 20071121
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