Records for Portland Area, Maine (PWMthr) on 05-09
Record Highs
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1: 92°F (1979)
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2: 88°F (1993)
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3: 87°F (1957)
Record Lows
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1: 23°F (1956)
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2: 28°F (1985)
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3: 28°F (1947)
Lowest Highs
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1: 54°F (1957)
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2: 53°F (2009)
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3: 52°F (2007)
Highest Lows
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1: 38°F (1966)
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2: 44°F (2020)
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3: 45°F (1961)
Highest May temperature:
94°F on 05-31-1987.
Lowest May temperature:
23°F on 05-09-1956.
Average temperature is 52.8°F
Average high is 62.3°F
Average low is 43.3°F
Temperature data from 1874 to 2022.
Record Precipitation
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1: 1.80" (1954)
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2: 1.42" (1904)
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3: 1.20" (1973)
Precipitation data from 1871 to 2022.