Records for Philadelphia Area, Pennsylvania (PHLthr) on 05-20
Record Highs
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1: 94°F (1996)
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2: 94°F (1962)
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3: 92°F (1934)
Record Lows
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1: 43°F (2002)
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2: 45°F (2020)
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3: 45°F (1981)
Lowest Highs
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1: 71°F (2019)
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2: 70°F (1903)
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3: 70°F (1877)
Highest Lows
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1: 53°F (2008)
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2: 53°F (1987)
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3: 54°F (2000)
Highest May temperature:
97°F on 05-30-1991.
Lowest May temperature:
28°F on 05-11-1966.
Average temperature is 67.1°F
Average high is 76.7°F
Average low is 57.5°F
Temperature data from 1873 to 2022.
Record Precipitation
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1: 1.64" (1969)
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2: 1.39" (1894)
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3: 1.25" (1889)
Precipitation data from 1871 to 2022.