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 °C
Hours of sunshine (daily)
Days with some rainfall

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 destinations in Washington State for next month - May. Select a destination to see the climate guide for all months of the year.

All Washington State destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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More about the USA

Compare Washington State with the USA

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

Maximum daytime temperature (°C)

Washington, USA (Seattle)
USA (Washington)
7
5
10
7
12
13
14
19
18
24
21
29
24
31
24
30
21
26
16
20
11
14
8
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

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