Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 05-15
Record Highs
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1: 90°F (1962)
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2: 89°F (2018)
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3: 88°F (1991)
Record Lows
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1: 37°F (2016)
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2: 37°F (1984)
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3: 38°F (2001)
Lowest Highs
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1: 65°F (2009)
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2: 65°F (2004)
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3: 64°F (2014)
Highest Lows
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1: 59°F (2016)
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2: 61°F (1968)
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3: 62°F (1996)
Highest May temperature:
97°F on 05-29-1969.
Lowest May temperature:
28°F on 05-07-1970.
Average temperature is 63.5°F
Average high is 74°F
Average low is 53°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 2.40" (2003)
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2: 1.91" (2014)
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3: 1.17" (1989)
Precipitation data from 1960 to 2022.