Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 07-28
Record Highs
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1: 99°F (1993)
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2: 97°F (1997)
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3: 96°F (1986)
Record Lows
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1: 47°F (1977)
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2: 48°F (1962)
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3: 55°F (1984)
Lowest Highs
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1: 75°F (1963)
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2: 74°F (2016)
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3: 73°F (2020)
Highest Lows
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1: 76°F (1984)
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2: 78°F (2017)
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3: 78°F (2005)
Highest July temperature:
105°F on 07-22-2011.
Lowest July temperature:
41°F on 07-01-1988.
Average temperature is 77.2°F
Average high is 87.1°F
Average low is 67.3°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 1.65" (2000)
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2: 1.46" (2017)
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3: 1.31" (1981)
Precipitation data from 1960 to 2022.