Records for Portland Area, Maine (PWMthr) on 05-28
Record Highs
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1: 90°F (1988)
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2: 88°F (1959)
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3: 87°F (2016)
Record Lows
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1: 35°F (1968)
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2: 37°F (1994)
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3: 37°F (1992)
Lowest Highs
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1: 64°F (2015)
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2: 62°F (2020)
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3: 58°F (1944)
Highest Lows
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1: 49°F (2009)
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2: 52°F (2014)
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3: 53°F (2004)
Highest May temperature:
94°F on 05-31-1987.
Lowest May temperature:
23°F on 05-09-1956.
Average temperature is 58.4°F
Average high is 67.6°F
Average low is 49.2°F
Temperature data from 1874 to 2022.
Record Precipitation
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1: 1.88" (1906)
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2: 1.70" (1884)
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3: 1.27" (1887)
Precipitation data from 1871 to 2022.