Records for Seattle City Area, Washington (SEWthr) on 09-01
Record Highs
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1: 88°F (1987)
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2: 85°F (2006)
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3: 83°F (2017)
Record Lows
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1: 48°F (1999)
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2: 48°F (1973)
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3: 48°F (1919)
Lowest Highs
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1: 62°F (2019)
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2: 61°F (1987)
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3: 61°F (1981)
Highest Lows
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1: 57°F (1939)
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2: 58°F (1912)
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3: 60°F (1943)
Highest September temperature:
92°F on 09-14-1937.
Lowest September temperature:
36°F on 09-21-1895.
Average temperature is 65.3°F
Average high is 74.9°F
Average low is 55.6°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 0.89" (1939)
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2: 0.81" (1978)
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3: 0.77" (1983)
Precipitation data from 1894 to 2022.