Washington State weather by month

Check out Washington State weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum daytime temperature °F
45°F maximum daytime temperature in January in Seattle45
50°F maximum daytime temperature in February in Seattle50
54°F maximum daytime temperature in March in Seattle54
57°F maximum daytime temperature in April in Seattle57
64°F maximum daytime temperature in May in Seattle64
70°F maximum daytime temperature in June in Seattle70
75°F maximum daytime temperature in July in Seattle75
75°F maximum daytime temperature in August in Seattle75
70°F maximum daytime temperature in September in Seattle70
61°F maximum daytime temperature in October in Seattle61
52°F maximum daytime temperature in November in Seattle52
46°F maximum daytime temperature in December in Seattle46
Hours of sunshine (daily)
Days with some rainfall
18 days with some rainfall in January in Seattle18
15 days with some rainfall in February in Seattle15
16 days with some rainfall in March in Seattle16
13 days with some rainfall in April in Seattle13
11 days with some rainfall in May in Seattle11
9 days with some rainfall in June in Seattle9
5 days with some rainfall in July in Seattle5
6 days with some rainfall in August in Seattle6
9 days with some rainfall in September in Seattle9
12 days with some rainfall in October in Seattle12
17 days with some rainfall in November in Seattle17
18 days with some rainfall in December in Seattle18

More about Washington State

Washington State by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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The climate guide for Washington State (Seattle) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Washington State destinations

Below are average maximum temperatures at popular countries, regions and places in Washington State for next month - March. Select a destination to see the climate guide for all months of the year.

All Washington State destinations

Metric (°C)  |  Imperial (°F)

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More about the USA

Compare Washington State with the UK

Below the Washington State chart shows average maximum daytime temperature for Washington, USA (Seattle) and the UK (London).

Maximum daytime temperature (°F)

Washington, USA (Seattle)
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C)  |  Imperial (°F)

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