Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 12-12
Record Highs
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1: 72°F (1979)
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2: 71°F (2015)
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3: 65°F (2020)
Record Lows
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1: 9°F (1988)
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2: 10°F (1977)
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3: 11°F (1968)
Lowest Highs
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1: 46°F (1965)
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2: 45°F (1985)
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3: 45°F (1979)
Highest Lows
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1: 23°F (1962)
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2: 24°F (1988)
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3: 30°F (1995)
Highest December temperature:
79°F on 12-06-1998.
Lowest December temperature:
-4°F on 12-25-1989.
Average temperature is 38°F
Average high is 46.9°F
Average low is 29.1°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 0.95" (1964)
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2: 0.87" (1983)
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3: 0.55" (1982)
Precipitation data from 1960 to 2022.