Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 09-13
Record Highs
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1: 94°F (1974)
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2: 93°F (1962)
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3: 92°F (1998)
Record Lows
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1: 43°F (1985)
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2: 44°F (1975)
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3: 45°F (1992)
Lowest Highs
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1: 71°F (2018)
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2: 70°F (2008)
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3: 68°F (1989)
Highest Lows
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1: 61°F (1964)
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2: 65°F (1985)
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3: 66°F (2006)
Highest September temperature:
99°F on 09-02-1980.
Lowest September temperature:
30°F on 09-24-1974.
Average temperature is 69.7°F
Average high is 80.3°F
Average low is 59.1°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 0.68" (1983)
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2: 0.64" (1966)
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3: 0.53" (1996)
Precipitation data from 1960 to 2022.