Records for Seattle City Area, Washington (SEWthr) on 12-31
Record Highs
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1: 58°F (1963)
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2: 58°F (1917)
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3: 57°F (1958)
Record Lows
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1: 14°F (1978)
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2: 16°F (1968)
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3: 20°F (1927)
Lowest Highs
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1: 54°F (1917)
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2: 51°F (1963)
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3: 49°F (1962)
Highest Lows
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1: 26°F (1978)
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2: 26°F (1927)
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3: 27°F (1923)
Highest December temperature:
65°F on 12-04-1939.
Lowest December temperature:
9°F on 12-21-1990.
Average temperature is 41.4°F
Average high is 46°F
Average low is 36.7°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 1.44" (1996)
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2: 1.17" (1968)
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3: 1.05" (1939)
Precipitation data from 1894 to 2022.