Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 12-20
Record Highs
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1: 64°F (1988)
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2: 62°F (1987)
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3: 60°F (2018)
Record Lows
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1: 8°F (1991)
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2: 9°F (1989)
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3: 10°F (2004)
Lowest Highs
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1: 43°F (2011)
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2: 42°F (2013)
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3: 42°F (1998)
Highest Lows
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1: 22°F (2004)
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2: 24°F (1980)
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3: 27°F (1983)
Highest December temperature:
79°F on 12-06-1998.
Lowest December temperature:
-4°F on 12-25-1989.
Average temperature is 36.4°F
Average high is 44.9°F
Average low is 27.9°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 0.66" (1973)
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2: 0.50" (2012)
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3: 0.43" (2002)
Precipitation data from 1960 to 2022.