Washington State Weather Averages
Select a link for the average weather, by month or year, in cities, towns and parks throughout Washington state. The links take you to data for normal temperatures, precipitation, snowfall, sunshine and humidity.
Farther down the page you'll find links to in-depth weather information for Seattle and Spokane.
In-depth Weather Information
- Seattle Weather Averages
- Seattle Temperature Averages by Month
- Spokane Snowfall Totals and Snow Accumulation Averages
- Hot, Humid Weather in Washington State
- Pacific Ocean Temperatures on the Washington Coast
Climate information about temperature, precipitation, snow, sun, humidity, wind and storms in Seattle.
Detailed temperature information for Seattle, Washington with data on average monthly highs and lows plus number of days with hot or cold weather.
When, how much and how often Spokane, Washington has snow — with monthly and yearly averages for total days and inches of snowfall, snow accumulation, heavy snowstorms and first snowfall.
How often heat combines with humidity at cities in Washington to create uncomfortably muggy weather.
Monthly and yearly averages of sea water temperature off Washington.