Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 09-23
Record Highs
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1: 94°F (2019)
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2: 93°F (2010)
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3: 93°F (2005)
Record Lows
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1: 33°F (1983)
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2: 34°F (1962)
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3: 35°F (1976)
Lowest Highs
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1: 68°F (2019)
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2: 68°F (2005)
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3: 68°F (1980)
Highest Lows
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1: 57°F (1995)
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2: 58°F (1974)
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3: 60°F (1975)
Highest September temperature:
99°F on 09-02-1980.
Lowest September temperature:
30°F on 09-24-1974.
Average temperature is 65.8°F
Average high is 76.6°F
Average low is 55.1°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 1.74" (2003)
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2: 1.43" (2021)
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3: 1.40" (1975)
Precipitation data from 1960 to 2022.