Portland, Maine
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 31° -26° (1971) 67° (2007) 4.09" 20.5"
February 16° 34° -39° (1943) 64° (1957) 3.14" 12.8"
March 25° 42° -21° (1950) 88° (1998) 4.14" 13"
April 35° 53° 8° (1954) 89° (1927) 4.26" 3.2"
May 44° 63° 23° (1956) 96° (1937) 3.82" 0"
June 53° 73° 33° (1944) 98° (1991) 3.28" 0"
July 59° 79° 40° (1965) 103° (1911) 3.32" 0"
August 57° 77° 33° (1965) 103° (1975) 3.05" 0"
September 49° 69° 23° (1941) 96° (1939) 3.37" 0"
October 37° 58° 15° (1976) 88° (1963) 4.4" 0.1"
November 30° 47° -6° (1875) 74° (2003) 4.72" 3.2"
December 19° 36° -21° (1963) 71° (2001) 4.24" 13.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 54° 74° 39° (2002) 93° (1969) 0.1" NA
Sep 2 53° 73° 41° (1994) 94° (1953) 0.1" NA
Sep 3 53° 73° 39° (1958) 96° (1937) 0.1" NA
Sep 4 53° 73° 39° (1987) 93° (1937) 0.1" NA
Sep 5 52° 72° 40° (1965) 90° (1971) 0.1" NA
Sep 6 52° 72° 40° (1989) 88° (1983) 0.1" NA
Sep 7 52° 72° 33° (1962) 95° (1945) 0.11" NA
Sep 8 51° 71° 34° (1955) 93° (1960) 0.11" NA
Sep 9 51° 71° 37° (1952) 93° (2002) 0.11" NA
Sep 10 51° 71° 37° (1953) 94° (1897) 0.11" NA
Sep 11 50° 71° 35° (1963) 95° (1983) 0.11" NA
Sep 12 50° 70° 36° (1958) 91° (1961) 0.11" NA
Sep 13 49° 70° 34° (1954) 86° (1957) 0.11" NA
Sep 14 49° 70° 28° (1963) 92° (1931) 0.11" NA
Sep 15 49° 69° 29° (1963) 90° (1993) 0.11" NA
Sep 16 48° 69° 28° (1964) 96° (1939) 0.11" NA
Sep 17 48° 68° 30° (1948) 89° (1915) 0.11" NA
Sep 18 48° 68° 32° (1961) 90° (1955) 0.11" NA
Sep 19 47° 68° 31° (1964) 87° (1983) 0.12" NA
Sep 20 47° 67° 27° (1964) 87° (1985) 0.12" NA
Sep 21 47° 67° 30° (1964) 93° (1895) 0.12" NA
Sep 22 46° 67° 27° (1962) 92° (1914) 0.12" NA
Sep 23 46° 66° 31° (1955) 89° (1895) 0.12" NA
Sep 24 45° 66° 28° (1953) 88° (1959) 0.12" NA
Sep 25 45° 66° 29° (1963) 89° (1891) 0.12" NA
Sep 26 45° 65° 27° (1950) 90° (2007) 0.12" NA
Sep 27 44° 65° 29° (1955) 80° (1948) 0.12" NA
Sep 28 44° 65° 26° (1965) 83° (1881) 0.12" NA
Sep 29 43° 64° 27° (1957) 85° (1945) 0.12" NA
Sep 30 43° 64° 23° (1941) 85° (1986) 0.13" NA
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