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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  Web Search

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Seattle Monthly Averages

12 Month Weather Scroll   °F Click to change Seattle weather to Imperial units.Click to change Seattle weather to Metric units. °C
January
February
March
April
May
June
July
August
September
October
November
December
Hi 46°F Lo 35°F Hi 47°F Lo 34°F Hi 52°F Lo 36°F Hi 58°F Lo 40°F Hi 67°F Lo 44°F Hi 72°F Lo 48°F Hi 80°F Lo 53°F Hi 80°F Lo 54°F Hi 73°F Lo 51°F Hi 61°F Lo 45°F Hi 50°F Lo 39°F Hi 44°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
4.3 in 3 in 3.3 in 2.3 in 1.6 in 1.2 in 0.5 in 0.7 in 1.5 in 3.2 in 3.9 in 3.6 in
84% 84% 81% 77% 73% 71% 67% 69% 72% 78% 83% 84%
57% 57% 54% 50% 43% 40% 26% 24% 33% 42% 54% 56%
30.1 in 30.1 in 30.0 in 30.0 in 30.0 in 30.0 in 30.0 in 30.0 in 30.0 in 30.0 in 30.0 in 30.1 in
10 8 9 10 13 14 22 22 15 13 8 11
19 17 20 18 15 13 7 6 13 16 20 18
2 4 1 0 0 0 0 0 0 0 1 2
7 5 4 6 6 7 4 4 5 4 5 5
2 2 3 3 5 5 6 4 4 3 2 2
221 208 254 261 300 301 337 338 315 290 240 234
January
February
March
April
May
June
July
August
September
October
November
December
Hi 8°C Lo 2°C Hi 8°C Lo 1°C Hi 11°C Lo 2°C Hi 14°C Lo 4°C Hi 19°C Lo 7°C Hi 22°C Lo 9°C Hi 27°C Lo 12°C Hi 26°C Lo 12°C Hi 23°C Lo 11°C Hi 16°C Lo 7°C Hi 10°C Lo 4°C Hi 7°C Lo 1°C
8 km/h 8 km/h 8 km/h 8 km/h 7 km/h 7 km/h 6 km/h 6 km/h 6 km/h 7 km/h 8 km/h 7 km/h
109 mm 76 mm 84 mm 57 mm 40 mm 29 mm 11 mm 18 mm 37 mm 81 mm 100 mm 91 mm
84% 84% 81% 77% 73% 71% 67% 69% 72% 78% 83% 84%
57% 57% 54% 50% 43% 40% 26% 24% 33% 42% 54% 56%
1019 mb 1018 mb 1017 mb 1017 mb 1017 mb 1016 mb 1017 mb 1016 mb 1016 mb 1017 mb 1017 mb 1019 mb
10 8 9 10 13 14 22 22 15 13 8 11
19 17 20 18 15 13 7 6 13 16 20 18
2 4 1 0 0 0 0 0 0 0 1 2
7 5 4 6 6 7 4 4 5 4 5 5
2 2 3 3 5 5 6 4 4 3 2 2
221 208 254 261 300 301 337 338 315 290 240 234
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.

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