Records for Portland Area, Maine (PWMthr) on 05-12
Record Highs
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1: 88°F (1991)
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2: 82°F (2015)
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3: 82°F (1959)
Record Lows
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1: 29°F (1966)
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2: 29°F (1962)
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3: 30°F (1945)
Lowest Highs
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1: 58°F (1991)
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2: 57°F (1959)
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3: 52°F (2001)
Highest Lows
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1: 47°F (1996)
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2: 48°F (2006)
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3: 48°F (2003)
Highest May temperature:
94°F on 05-31-1987.
Lowest May temperature:
23°F on 05-09-1956.
Average temperature is 53.7°F
Average high is 63.1°F
Average low is 44.3°F
Temperature data from 1874 to 2022.
Record Precipitation
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1: 2.21" (1952)
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2: 1.70" (1989)
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3: 1.69" (1924)
Precipitation data from 1871 to 2022.