Average Temperatures and Rainfall for Washington

Average annual temperatures for Washington (11°C/52°F) are slightly below the average for United States (13°C/55°F).

Average annual rainfall for Washington (952mm/37 inches) is slightly below the average for United States (1,039mm/41 inches).

What is the warmest or hottest month in Washington?

August is the hottest or warmest month in Washington, with an average maximum temperate of 27°C/81°F.

What is the coldest or coolest month in Washington?

December is the coolest or coldest month in Washington, with an average minimum temperate of 1°C/34°F.

What is the most rainy or wettest month in Washington?

November is the wettest or most rainy month in Washington, with an average rainfall of 141mm/6 inches.

What is the least rainy or driest month in Washington?

July is the driest or least rainy month in Washington, with an average rainfall of 13mm/1 inches.

What is the warmest or hottest place in Washington?

Vancouver is the hottest or warmest place in Washington, with an average maximum temperate of 12°C/54°F.

What is the coldest place in Washington?

Spokane is the coldest place in Washington, with an average maximum temperate of 8°C/46°F.

What is the most rainy or wettest place in Washington?

Vancouver is the most rainy or wettest place in Washington, with an average annual rainfall of 1,188mm/47 inches.

What is the least rainy or driest place in Washington?

Yakima is the least rainy or driest place in Washington, with an average annual rainfall of 204mm/8 inches.

Average Monthly Temperatures
Average Maximum Temperature Average Minimum Temperature
Average Monthly Rainfall
PlaceMin TempMax TempAvg TempRainfall
Auburn 8 16 12 1,140
Bellevue 8 16 12 1,094
Bellingham 7 15 11 991
Burien 8 16 12 1,140
Everett 7 15 11 959
Federal Way 8 16 12 1,140
Kent 8 16 12 1,140
Kirkland 8 16 12 1,094
Lakewood 8 16 12 1,140
Marysville 7 15 11 959
Olympia 8 15 11 1,133
Redmond 8 16 12 1,094
Renton 8 16 12 1,094
Sammamish 8 16 12 1,094
Seattle 8 16 12 1,094
Shoreline 8 16 12 1,094
South Hill 8 16 12 1,140
Spokane 1 15 8 586
Spokane Valley 1 15 8 586
Tacoma 8 16 12 1,140
Vancouver 8 17 12 1,188
Yakima 4 19 11 204