Historical Weather in Washington
See 55+ years of weather history for any date in Washington going back to 1970.
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Monthly Climate Averages
Historical temperature and precipitation averages for Seattle, WA, based on 55+ years of weather data.
Warmest MonthAugustAvg High: 76°F / Low: 58°F
Coldest MonthDecemberAvg High: 47°F / Low: 37°F
Jan
47°/ 36°
💧 0.3"
❄️ 1.8"
Feb
50°/ 37°
💧 0.2"
❄️ 1.9"
Mar
54°/ 40°
💧 0.2"
❄️ 1.9"
Apr
59°/ 43°
💧 0.2"
❄️ 1.0"
May
66°/ 49°
💧 0.2"
Jun
71°/ 53°
💧 0.1"
Jul
76°/ 57°
💧 0.1"
Aug
76°/ 58°
💧 0.2"
Sep
71°/ 53°
💧 0.2"
Oct
61°/ 47°
💧 0.3"
Nov
52°/ 40°
💧 0.3"
❄️ 1.4"
Dec
47°/ 37°
💧 0.3"
❄️ 2.2"
Temperatures in Fahrenheit. Precipitation and snowfall in inches.
Climate data based on Seattle, the largest city in Washington.
Washington All-Time Temperature RecordsSee the hottest and coldest days ever recorded since 1970
→Washington All-Time Weather ExtremesRain, snow, and temperature extremes for any Washington city or ZIP code
→Major Cities in Washington
Today's Weather History in Washington
See how today compares to 55+ years of weather data for Washington cities.