Records for Seattle Tacoma Area, Washington (SEAthr) on 12-18
Record Highs
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1: 54°F (2018)
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2: 54°F (2004)
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3: 54°F (2003)
Record Lows
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1: 18°F (1964)
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2: 20°F (1984)
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3: 20°F (1945)
Lowest Highs
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1: 50°F (1979)
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2: 47°F (1966)
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3: 46°F (1994)
Highest Lows
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1: 30°F (1964)
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2: 31°F (1984)
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3: 34°F (1949)
Highest December temperature:
66°F on 12-10-2014.
Lowest December temperature:
6°F on 12-30-1968.
Average temperature is 41.7°F
Average high is 46.8°F
Average low is 36.6°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 1.23" (1960)
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2: 0.73" (2015)
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3: 0.70" (2018)
Precipitation data from 1945 to 2022.