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What is the weather like in Seattle, WashingtonSeattle, Washington monthly and yearly climate averages.

Seattle, Washington Climate Averages

Monthly and yearly weather averages for Seattle, WashingtonWeather almanac for Seattle, WA. Seattle monthly weather averages.
Lat: 47.61N, Lon: 122.33W
Wx Zone: WAZ558

Helpful Tip: Abbreviated, 7 Day, 14 Day Forecasts. There is a weather forecast for every taste.

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Seattle Monthly Averages

     <-- 12 Month Weather Scroll -->
January
February
March
April
May
June
July
August
September
October
November
December
Hi 45°F Lo 35°F Hi 46°F Lo 35°F Hi 51°F Lo 37°F Hi 57°F Lo 39°F Hi 65°F Lo 44°F Hi 70°F Lo 48°F Hi 77°F Lo 52°F Hi 77°F Lo 53°F Hi 71°F Lo 50°F Hi 59°F Lo 45°F Hi 49°F Lo 39°F Hi 43°F Lo 34°F
5 mph 5 mph 5 mph 5 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 5 mph 5 mph
1.1 in 0.8 in 0.6 in 0.6 in 0.5 in 0.3 in 0.1 in 0.2 in 0.3 in 0.8 in 0.9 in 1.3 in
85% 84% 82% 79% 74% 72% 67% 70% 73% 78% 84% 85%
58% 57% 55% 53% 45% 45% 29% 27% 35% 44% 56% 58%
30.6 in 30.5 in 30.5 in 30.5 in 30.5 in 30.5 in 30.5 in 30.5 in 30.5 in 30.5 in 30.5 in 30.6 in
17 16 17 16 20 20 26 26 22 20 16 17
11 9 12 10 8 7 5 3 6 9 11 11
1 2 0 0 0 0 0 0 0 0 0 1
10 10 10 10 11 11 6 6 7 8 8 9
2 2 3 3 4 5 6 4 4 3 2 2
128 121 188 233 274 276 323 332 273 168 132 127
Month
Avg. Temperatures
Avg. Wind Speed
Avg. Precipitation
Average Humidity
Avg. Cloud Cover
Barometric Pressure
Average Dry Days
Avg. Precip. Days
Average Snow Days
Average Fog Days
Average UV Index
Avg. Hours of Sun
Averages are based on historical weather data from the past 10 years.