Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 12-15
Record Highs
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1: 71°F (1971)
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2: 66°F (2015)
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3: 66°F (1984)
Record Lows
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1: 5°F (1989)
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2: 10°F (1962)
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3: 11°F (2016)
Lowest Highs
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1: 45°F (2008)
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2: 43°F (1984)
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3: 42°F (2018)
Highest Lows
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1: 29°F (2017)
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2: 30°F (1968)
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3: 31°F (2010)
Highest December temperature:
79°F on 12-06-1998.
Lowest December temperature:
-4°F on 12-25-1989.
Average temperature is 37.4°F
Average high is 46.1°F
Average low is 28.6°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 2.49" (2018)
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2: 1.88" (2022)
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3: 1.07" (2005)
Precipitation data from 1960 to 2022.