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Seattle, WA Weather


Seattle, WA climate is mild during summer when temperatures tend to be in the 60's and cold during winter when temperatures tend to be in the 40's.

The warmest month of the year is August with an average maximum temperature of 74.90 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 36.00 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 18 degrees Fahrenheit, and fairly limited during winter with an average difference of 12 degrees Fahrenheit.

The annual average precipitation at Seattle is 38.25 Inches. Winter months tend to be wetter than summer months. The wettest month of the year is December with an average rainfall of 6.06 Inches.

Weather Data

Moon, Sunrise and Sunset

Waning Crescent Moon Moon Phase: Waning Crescent Moon Civil Twilight:
5:38 AM PDT
Sunrise:
6:11 AM PDT
Sunset:
8:11 PM PDT
Civil Twilight:
8:44 PM PDT

Normal Climate

Normal Temperatures

(SEATTLE URBAN SITE Weather station, 3.34 miles from Seattle)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 46.9 50.5 54.5 59.3 64.9 69.5 74.5 74.9 69.9 60.3 51.5 46.5 60.3
Mean °F 41.5 43.8 46.9 50.9 56.6 61.1 65.5 66.0 61.3 53.4 46.0 41.3 52.9
Min °F 36.0 37.1 39.2 42.5 48.2 52.7 56.4 57.1 52.6 46.4 40.4 36.1 45.4

Normal Precipitation

(SEATTLE URBAN SITE Weather station, 3.34 miles from Seattle)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 5.24 4.09 3.92 2.75 2.03 1.55 0.93 1.16 1.61 3.24 5.67 6.06 38.25