Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 08-21
Record Highs
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1: 96°F (1962)
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2: 94°F (2009)
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3: 94°F (2005)
Record Lows
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1: 47°F (1976)
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2: 48°F (1981)
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3: 49°F (1969)
Lowest Highs
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1: 76°F (1962)
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2: 73°F (2011)
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3: 73°F (1989)
Highest Lows
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1: 70°F (2007)
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2: 70°F (1986)
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3: 70°F (1973)
Highest August temperature:
104°F on 08-20-1983.
Lowest August temperature:
38°F on 08-29-1982.
Average temperature is 75.4°F
Average high is 85.7°F
Average low is 65.1°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 2.72" (2018)
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2: 1.43" (2014)
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3: 1.42" (1973)
Precipitation data from 1960 to 2022.