Washington State weather

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Below are the temperatures expected today at popular destinations in Washington State. Select a destination to compare today's forecast with average weather conditions.

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The weather guide for Washington State shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by MeteoBlue. Find out more about our data sources.

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Which is the hottest month in Washington State?

The hottest time of year in Seattle, Washington State is normally July. Expect maximum daytime temperatures to reach 24°C.

Which month has the most rain in Washington State?

In terms of rainfall, December is usually the wettest month in Seattle, Washington State with 151mm on average. There are normally 18 days in December with some rain.

When is it sunniest in Washington State?

The sunniest time of year in Seattle, Washington State is normally July with bright sunshine on average for 64% of daylight hours; that's 10 hours of sunshine per day.

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

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Compare Washington State weather with the USA

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

Maximum daytime temperature (°C)

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

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

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