Washington weather by month

Average temperatures and rainfall across Washington, based on 30 years of climate data.

Monthly climate (Seattle)

MonthHigh / LowRainfallWet days
Jan46° / 38°6.9 in18.4
Feb49° / 39°4.7 in14.5
Mar52° / 40°5.5 in17.5
Apr57° / 44°4.5 in14.9
May64° / 49°3.0 in12
Jun68° / 53°2.3 in9.5
Jul74° / 57°1.0 in5
Aug75° / 58°1.3 in4.8
Sep69° / 53°2.6 in8.4
Oct59° / 47°5.3 in14.1
Nov50° / 42°7.6 in18
Dec45° / 38°7.0 in17.6

Cities in Washington