Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 12-10
Record Highs
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1: 70°F (1966)
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2: 63°F (2015)
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3: 63°F (2012)
Record Lows
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1: 4°F (1989)
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2: 5°F (1968)
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3: 14°F (2005)
Lowest Highs
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1: 55°F (1966)
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2: 48°F (2012)
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3: 46°F (2008)
Highest Lows
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1: 25°F (1968)
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2: 28°F (1977)
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3: 29°F (1995)
Highest December temperature:
79°F on 12-06-1998.
Lowest December temperature:
-4°F on 12-25-1989.
Average temperature is 38.4°F
Average high is 47.4°F
Average low is 29.4°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 2.26" (1992)
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2: 1.50" (1969)
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3: 1.38" (1967)
Precipitation data from 1960 to 2022.