Records for Portland Area, Maine (PWMthr) on 05-29
Record Highs
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1: 90°F (1998)
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2: 86°F (2018)
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3: 84°F (2006)
Record Lows
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1: 35°F (1964)
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2: 35°F (1962)
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3: 36°F (1977)
Lowest Highs
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1: 62°F (1998)
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2: 60°F (1987)
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3: 59°F (2015)
Highest Lows
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1: 49°F (2017)
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2: 50°F (2021)
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3: 50°F (1984)
Highest May temperature:
94°F on 05-31-1987.
Lowest May temperature:
23°F on 05-09-1956.
Average temperature is 58.7°F
Average high is 67.9°F
Average low is 49.5°F
Temperature data from 1874 to 2022.
Record Precipitation
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1: 2.18" (1984)
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2: 1.81" (2012)
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3: 1.09" (1917)
Precipitation data from 1871 to 2022.