Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 07-09
Record Highs
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1: 99°F (1993)
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2: 99°F (1988)
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3: 98°F (1990)
Record Lows
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1: 48°F (1984)
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2: 54°F (2018)
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3: 54°F (1995)
Lowest Highs
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1: 74°F (2010)
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2: 74°F (1990)
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3: 74°F (1987)
Highest Lows
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1: 72°F (2022)
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2: 76°F (1969)
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3: 77°F (1963)
Highest July temperature:
105°F on 07-22-2011.
Lowest July temperature:
41°F on 07-01-1988.
Average temperature is 77.3°F
Average high is 87.3°F
Average low is 67.3°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 2.23" (1970)
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2: 1.48" (2022)
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3: 1.22" (1988)
Precipitation data from 1960 to 2022.