Records for Seattle City Area, Washington (SEWthr) on 09-15
Record Highs
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1: 92°F (1967)
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2: 88°F (1951)
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3: 87°F (2014)
Record Lows
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1: 45°F (1992)
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2: 45°F (1921)
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3: 45°F (1901)
Lowest Highs
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1: 60°F (2020)
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2: 60°F (2000)
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3: 60°F (1994)
Highest Lows
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1: 57°F (1956)
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2: 57°F (1914)
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3: 57°F (1911)
Highest September temperature:
92°F on 09-14-1937.
Lowest September temperature:
36°F on 09-21-1895.
Average temperature is 62.6°F
Average high is 71.8°F
Average low is 53.4°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 0.82" (1896)
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2: 0.67" (1945)
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3: 0.49" (2019)
Precipitation data from 1894 to 2022.