Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 09-24
Record Highs
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1: 97°F (2010)
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2: 92°F (1970)
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3: 89°F (2017)
Record Lows
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1: 30°F (1974)
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2: 32°F (1983)
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3: 35°F (1963)
Lowest Highs
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1: 72°F (2009)
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2: 67°F (1986)
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3: 66°F (1970)
Highest Lows
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1: 55°F (1995)
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2: 60°F (1974)
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3: 61°F (1997)
Highest September temperature:
99°F on 09-02-1980.
Lowest September temperature:
30°F on 09-24-1974.
Average temperature is 65.4°F
Average high is 76.2°F
Average low is 54.6°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 2.17" (2001)
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2: 1.83" (1975)
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3: 0.93" (1991)
Precipitation data from 1960 to 2022.