Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 09-14
Record Highs
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1: 95°F (1998)
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2: 93°F (2016)
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3: 93°F (1995)
Record Lows
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1: 37°F (1985)
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2: 40°F (1975)
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3: 40°F (1964)
Lowest Highs
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1: 72°F (2018)
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2: 71°F (2008)
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3: 70°F (1989)
Highest Lows
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1: 64°F (1963)
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2: 66°F (1975)
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3: 68°F (2014)
Highest September temperature:
99°F on 09-02-1980.
Lowest September temperature:
30°F on 09-24-1974.
Average temperature is 69.4°F
Average high is 80°F
Average low is 58.8°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 5.52" (1966)
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2: 2.34" (1973)
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3: 0.63" (2006)
Precipitation data from 1960 to 2022.