Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 12-19
Record Highs
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1: 63°F (1967)
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2: 62°F (1997)
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3: 61°F (1970)
Record Lows
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1: -2°F (1989)
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2: 7°F (1985)
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3: 10°F (1964)
Lowest Highs
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1: 42°F (1984)
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2: 38°F (2008)
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3: 36°F (1967)
Highest Lows
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1: 25°F (1989)
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2: 26°F (1975)
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3: 27°F (2009)
Highest December temperature:
79°F on 12-06-1998.
Lowest December temperature:
-4°F on 12-25-1989.
Average temperature is 36.6°F
Average high is 45.1°F
Average low is 28°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 1.34" (2009)
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2: 0.86" (1995)
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3: 0.21" (2008)
Precipitation data from 1960 to 2022.