Records for Seattle Tacoma Area, Washington (SEAthr) on 12-21
Record Highs
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1: 59°F (2020)
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2: 56°F (2005)
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3: 55°F (2014)
Record Lows
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1: 12°F (1990)
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2: 16°F (1983)
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3: 18°F (1998)
Lowest Highs
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1: 50°F (2014)
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2: 49°F (2005)
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3: 48°F (1972)
Highest Lows
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1: 20°F (1990)
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2: 24°F (1983)
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3: 25°F (1998)
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: 1.64" (2020)
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2: 1.08" (2015)
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3: 0.99" (1964)
Precipitation data from 1945 to 2022.