Climate and Weather of Washington State, the United States of America

In the United States of America you have several regions, one of which is called Washington State. The most popular city in this region is Seattle, whose climate data we'll examine to provide you with an overview of what weather to expect in Washington State. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.

Washington State offers pleasant conditions in June, July, August and September, with temperatures typically ranging from 21°C to 25°C.

Washington State reaches its peak temperature in July, hitting 25°C, while December brings cooler conditions with daytime highs of 7°C.

The cooler season is during the months of January and December.

When it comes to rainfall, Washington State sees significant variations throughout the year. November tends to be the wettest, receiving 166 mm of rain, while July is much drier with just 13 mm.

July is the sunniest period, with ideal conditions for exploring the region and all it has to offer.

Select a Month of Interest

Check the conditions for any month of the year.

Washington State has to deal with a number of climate types that are relatively rare in the United States. However most of Washington State has a temperate Mediterranean climate with fairly dry summers, wetter winters and moderate temperatures throughout the year.

Interested in the detailed Weather and Climate of Washington State, the United States of America?

Please select a city below the map you wish to travel to, or the one closest to your destination. Each selected city will show you the following graphs:
1. Average minimum and maximum temperature over the year
2. Average monthly precipitation over the year (rainfall, snow)
3. Average monthly hours of sunshine over the year
On certain pages we also offer other historical climate data like humidity wind speed and water temperature.