Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 09-25
Record Highs
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1: 93°F (2010)
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2: 92°F (1970)
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3: 91°F (2007)
Record Lows
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1: 33°F (1983)
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2: 35°F (1963)
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3: 37°F (1990)
Lowest Highs
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1: 68°F (2010)
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2: 66°F (2011)
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3: 66°F (2005)
Highest Lows
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1: 56°F (1992)
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2: 59°F (1988)
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3: 60°F (1966)
Highest September temperature:
99°F on 09-02-1980.
Lowest September temperature:
30°F on 09-24-1974.
Average temperature is 65°F
Average high is 75.8°F
Average low is 54.2°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 2.67" (1975)
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2: 2.30" (2000)
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3: 1.23" (1980)
Precipitation data from 1960 to 2022.