Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 04-21
Record Highs
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1: 89°F (1985)
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2: 84°F (2017)
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3: 84°F (1976)
Record Lows
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1: 29°F (1983)
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2: 30°F (2018)
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3: 30°F (1997)
Lowest Highs
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1: 61°F (2017)
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2: 57°F (2008)
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3: 56°F (1996)
Highest Lows
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1: 46°F (1964)
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2: 53°F (1999)
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3: 53°F (1991)
Highest April temperature:
93°F on 04-06-2010.
Lowest April temperature:
17°F on 04-01-1969.
Average temperature is 56.6°F
Average high is 68.3°F
Average low is 45°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 2.20" (1992)
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2: 0.94" (2008)
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3: 0.63" (2002)
Precipitation data from 1960 to 2022.