Weather by month in Washington State

Washington State is a region in the United States of America. Many people wonder what the weather conditions are in Washington State over the year. What is the best time to visit Washington State?

This page shows the average weather conditions by month in Washington State over the year in: January, February, March, April, May, June, July, August, September, October, November, December.

In January the weather in Washington State is generally poor. January is a winter month. The temperatures range from very low in Mount Rainier National Park with -5°C to low in Ocean Park with 10°C.

Find more detailed climate information for Washington State in January here.

In February the weather in Washington State ranges from poor in Seattle to unpleasant in Vancouver. February is a winter month. The temperatures range from very low in Mount Rainier National Park with -5°C to low in Vancouver with 11°C.

Find more detailed climate information for Washington State in February here.

In March the weather in Washington State ranges from poor in Seattle to tolerable in Wenatchee. The temperatures range from very low in Mount Rainier National Park with -4°C to moderate in Pasco with 15°C.

Find more detailed climate information for Washington State in March here.

In April the weather in Washington State ranges from poor in Ocean Shores to pleasant in Leavenworth. The temperatures range from very low in Mount Rainier National Park with -2°C to pleasant in Kennewick with 19°C.

Find more detailed climate information for Washington State in April here.

In May the weather in Washington State ranges from unpleasant in Long Beach to perfect in Vancouver. The temperatures range from low in Mount Rainier National Park with 3°C to high in Kennewick with 24°C.

Find more detailed climate information for Washington State in May here.

In June the weather in Washington State ranges from tolerable in Ocean Shores to perfect in Seattle. The temperatures range from low in Mount Rainier National Park with 6°C to high in Pasco with 28°C.

Find more detailed climate information for Washington State in June here.

In July the weather in Washington State is generally perfect. July is a summer month. The temperatures range from low in Mount Rainier National Park with 11°C to very high in Pasco with 33°C. On average, this month is one of the warmest months of the year in Washington State. So be prepared and make sure to dress lightly.

Find more detailed climate information for Washington State in July here.

In August the weather in Washington State ranges from pleasant in Ocean Shores to perfect in Seattle. August is a summer month. The temperatures range from low in Mount Rainier National Park with 11°C to very high in Pasco with 32°C. On average, this month is one of the warmest months of the year in Washington State. So be prepared and make sure to dress lightly.

Find more detailed climate information for Washington State in August here.

In September the weather in Washington State ranges from pleasant in Ocean Shores to perfect in Seattle. September is a summer month. The temperatures range from low in Mount Rainier National Park with 8°C to high in Pasco with 27°C.

Find more detailed climate information for Washington State in September here.

In October the weather in Washington State ranges from poor in Ocean Shores to pleasant in Vancouver. The temperatures range from low in Mount Rainier National Park with 3°C to pleasant in Kennewick with 19°C.

Find more detailed climate information for Washington State in October here.

In November the weather in Washington State is generally poor. The temperatures range from very low in Mount Rainier National Park with -4°C to low in Vancouver with 12°C.

Find more detailed climate information for Washington State in November here.

In December the weather in Washington State is generally poor. December is a winter month. The temperatures range from very low in Mount Rainier National Park with -6°C to low in Ilwaco with 9°C. On average, this month is the coldest month of the year in Washington State.

Find more detailed climate information for Washington State in December here.