Records for Seattle City Area, Washington (SEWthr) on 09-20
Record Highs
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1: 85°F (1974)
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2: 82°F (1976)
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3: 81°F (1952)
Record Lows
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1: 41°F (1895)
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2: 42°F (1902)
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3: 44°F (1983)
Lowest Highs
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1: 62°F (1979)
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2: 61°F (1967)
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3: 60°F (1952)
Highest Lows
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1: 55°F (1923)
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2: 56°F (2006)
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3: 56°F (1895)
Highest September temperature:
92°F on 09-14-1937.
Lowest September temperature:
36°F on 09-21-1895.
Average temperature is 61.4°F
Average high is 70.2°F
Average low is 52.5°F
Temperature data from 1894 to 2022.
Record Precipitation
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1: 1.10" (1923)
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2: 0.53" (2008)
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3: 0.35" (1921)
Precipitation data from 1894 to 2022.