Records for Seattle City Area, Washington (SEWthr) on 12-20
Record Highs
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1: 60°F (1919)
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2: 57°F (2009)
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3: 57°F (1974)
Record Lows
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1: 11°F (1990)
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2: 19°F (2008)
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3: 19°F (1998)
Lowest Highs
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1: 52°F (1972)
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2: 49°F (1969)
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3: 49°F (1950)
Highest Lows
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1: 21°F (1990)
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2: 26°F (1998)
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3: 27°F (2008)
Highest December temperature:
65°F on 12-04-1939.
Lowest December temperature:
9°F on 12-21-1990.
Average temperature is 41.2°F
Average high is 45.8°F
Average low is 36.6°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 2.64" (2019)
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2: 2.00" (1900)
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3: 1.96" (1933)
Precipitation data from 1894 to 2022.