Records for Portland Area, Maine (PWMthr) on 09-21
Record Highs
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1: 91°F (1978)
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2: 88°F (1965)
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3: 85°F (1985)
Record Lows
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1: 30°F (1964)
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2: 30°F (1962)
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3: 30°F (1956)
Lowest Highs
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1: 65°F (1965)
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2: 63°F (2002)
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3: 63°F (1980)
Highest Lows
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1: 45°F (1977)
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2: 55°F (1942)
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3: 58°F (1966)
Highest September temperature:
95°F on 09-07-1945.
Lowest September temperature:
23°F on 09-30-1941.
Average temperature is 59.7°F
Average high is 69.1°F
Average low is 50.2°F
Temperature data from 1874 to 2022.
Record Precipitation
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1: 1.27" (1974)
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2: 1.24" (2001)
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3: 1.01" (1961)
Precipitation data from 1871 to 2022.