Records for Portland Area, Maine (PWMthr) on 12-20
Record Highs
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1: 53°F (1957)
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2: 52°F (2002)
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3: 48°F (1967)
Record Lows
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1: -20°F (1975)
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2: -15°F (1942)
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3: -11°F (1980)
Lowest Highs
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1: 46°F (1957)
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2: 35°F (1949)
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3: 31°F (2012)
Highest Lows
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1: 10°F (1955)
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2: 12°F (1975)
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3: 14°F (1980)
Highest December temperature:
71°F on 12-06-2001.
Lowest December temperature:
-21°F on 12-31-1963.
Average temperature is 29.1°F
Average high is 37°F
Average low is 21.2°F
Temperature data from 1874 to 2022.
Record Precipitation
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1: 1.79" (1939)
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2: 1.27" (1933)
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3: 1.12" (2002)
Precipitation data from 1871 to 2022.