Records for Seattle Tacoma Area, Washington (SEAthr) on 12-20
Record Highs
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1: 59°F (2018)
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2: 57°F (2009)
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3: 57°F (1973)
Record Lows
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1: 14°F (2008)
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2: 14°F (1990)
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3: 15°F (1998)
Lowest Highs
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1: 51°F (1972)
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2: 49°F (2019)
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3: 48°F (2005)
Highest Lows
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1: 21°F (1990)
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2: 24°F (1998)
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3: 26°F (2008)
Highest December temperature:
66°F on 12-10-2014.
Lowest December temperature:
6°F on 12-30-1968.
Average temperature is 41.6°F
Average high is 46.7°F
Average low is 36.5°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 3.25" (2019)
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2: 1.93" (1955)
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3: 1.13" (1994)
Precipitation data from 1945 to 2022.