Records for Portland Area, Maine (PWMthr) on 12-21
Record Highs
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1: 60°F (1957)
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2: 56°F (1988)
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3: 55°F (1973)
Record Lows
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1: -14°F (1955)
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2: -10°F (1945)
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3: -9°F (1980)
Lowest Highs
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1: 44°F (1973)
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2: 40°F (1949)
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3: 39°F (1957)
Highest Lows
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1: 11°F (1955)
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2: 12°F (1942)
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3: 17°F (1989)
Highest December temperature:
71°F on 12-06-2001.
Lowest December temperature:
-21°F on 12-31-1963.
Average temperature is 28.8°F
Average high is 36.8°F
Average low is 20.9°F
Temperature data from 1874 to 2022.
Record Precipitation
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1: 2.05" (1946)
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2: 1.76" (1993)
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3: 1.58" (1977)
Precipitation data from 1871 to 2022.