Records for Portland Area, Maine (PWMthr) on 12-31
Record Highs
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1: 53°F (1990)
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2: 51°F (2022)
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3: 50°F (1965)
Record Lows
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1: -21°F (1963)
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2: -10°F (2017)
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3: -10°F (1946)
Lowest Highs
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1: 40°F (1948)
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2: 34°F (1945)
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3: 33°F (2003)
Highest Lows
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1: 7°F (1956)
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2: 11°F (2017)
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3: 12°F (1962)
Highest December temperature:
71°F on 12-06-2001.
Lowest December temperature:
-21°F on 12-31-1963.
Average temperature is 26.3°F
Average high is 34.3°F
Average low is 18.3°F
Temperature data from 1874 to 2022.
Record Precipitation
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1: 1.49" (1972)
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2: 1.46" (1906)
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3: 1.34" (1895)
Precipitation data from 1871 to 2022.