Records for Seattle Tacoma Area, Washington (SEAthr) on 09-18
Record Highs
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1: 85°F (1991)
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2: 82°F (2012)
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3: 80°F (2009)
Record Lows
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1: 38°F (1947)
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2: 41°F (1955)
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3: 41°F (1948)
Lowest Highs
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1: 60°F (2020)
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2: 60°F (2000)
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3: 59°F (2014)
Highest Lows
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1: 56°F (2004)
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2: 56°F (1968)
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3: 58°F (1956)
Highest September temperature:
98°F on 09-02-1988.
Lowest September temperature:
35°F on 09-27-1972.
Average temperature is 61.4°F
Average high is 70.2°F
Average low is 52.7°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 0.81" (2021)
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2: 0.78" (2010)
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3: 0.57" (1983)
Precipitation data from 1945 to 2022.