Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 07-23
Record Highs
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1: 99°F (2011)
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2: 99°F (1991)
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3: 98°F (2016)
Record Lows
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1: 50°F (1983)
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2: 50°F (1977)
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3: 55°F (1985)
Lowest Highs
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1: 76°F (2011)
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2: 73°F (2018)
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3: 73°F (1978)
Highest Lows
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1: 71°F (1970)
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2: 74°F (1997)
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3: 74°F (1974)
Highest July temperature:
105°F on 07-22-2011.
Lowest July temperature:
41°F on 07-01-1988.
Average temperature is 77.4°F
Average high is 87.3°F
Average low is 67.5°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 1.51" (1988)
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2: 1.48" (2009)
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3: 0.84" (2017)
Precipitation data from 1960 to 2022.