Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 12-11
Record Highs
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1: 71°F (1979)
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2: 68°F (2021)
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3: 64°F (1971)
Record Lows
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1: 3°F (1968)
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2: 10°F (1977)
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3: 12°F (1989)
Lowest Highs
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1: 46°F (2021)
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2: 44°F (1965)
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3: 43°F (2007)
Highest Lows
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1: 28°F (1995)
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2: 28°F (1977)
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3: 28°F (1962)
Highest December temperature:
79°F on 12-06-1998.
Lowest December temperature:
-4°F on 12-25-1989.
Average temperature is 38.2°F
Average high is 47.2°F
Average low is 29.3°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 1.34" (2008)
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2: 1.09" (2002)
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3: 0.99" (2003)
Precipitation data from 1960 to 2022.