Records for Seattle Tacoma Area, Washington (SEAthr) on 09-20
Record Highs
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1: 88°F (1974)
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2: 86°F (1976)
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3: 83°F (1987)
Record Lows
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1: 40°F (1949)
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2: 42°F (1955)
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3: 42°F (1950)
Lowest Highs
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1: 61°F (1967)
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2: 59°F (1976)
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3: 58°F (2020)
Highest Lows
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1: 55°F (2006)
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2: 55°F (1955)
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3: 57°F (2017)
Highest September temperature:
98°F on 09-02-1988.
Lowest September temperature:
35°F on 09-27-1972.
Average temperature is 60.9°F
Average high is 69.6°F
Average low is 52.3°F
Temperature data from 1945 to 2022.
Record Precipitation
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1: 1.05" (1972)
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2: 0.54" (2008)
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3: 0.39" (1973)
Precipitation data from 1945 to 2022.