Records for Portland Area, Maine (PWMthr) on 05-01
Record Highs
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1: 75°F (1972)
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2: 74°F (1998)
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3: 74°F (1983)
Record Lows
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1: 26°F (1978)
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2: 27°F (1943)
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3: 28°F (2000)
Lowest Highs
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1: 52°F (1983)
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2: 50°F (2004)
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3: 48°F (2009)
Highest Lows
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1: 43°F (1962)
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2: 44°F (2017)
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3: 45°F (1950)
Highest May temperature:
94°F on 05-31-1987.
Lowest May temperature:
23°F on 05-09-1956.
Average temperature is 50.2°F
Average high is 59.8°F
Average low is 40.7°F
Temperature data from 1874 to 2022.
Record Precipitation
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1: 0.99" (1953)
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2: 0.96" (2020)
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3: 0.95" (2014)
Precipitation data from 1871 to 2022.