Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 07-12
Record Highs
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1: 97°F (1986)
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2: 96°F (2011)
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3: 94°F (1987)
Record Lows
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1: 47°F (2002)
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2: 51°F (1978)
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3: 51°F (1974)
Lowest Highs
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1: 74°F (2021)
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2: 72°F (2006)
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3: 71°F (2017)
Highest Lows
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1: 71°F (1999)
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2: 75°F (2013)
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3: 75°F (1996)
Highest July temperature:
105°F on 07-22-2011.
Lowest July temperature:
41°F on 07-01-1988.
Average temperature is 77.5°F
Average high is 87.4°F
Average low is 67.5°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 2.61" (1990)
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2: 1.79" (1964)
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3: 1.55" (1987)
Precipitation data from 1960 to 2022.