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
May 1 40° 58° 26° (1978) 78° (1899) 0.13" NA
May 2 40° 58° 25° (1964) 91° (2001) 0.13" NA
May 3 40° 59° 24° (1966) 92° (2001) 0.13" NA
May 4 40° 59° 26° (1951) 84° (1955) 0.13" NA
May 5 41° 60° 28° (1951) 82° (1949) 0.13" NA
May 6 41° 60° 28° (1961) 88° (1930) 0.13" NA
May 7 41° 60° 28° (1967) 86° (1930) 0.13" NA
May 8 42° 61° 27° (1962) 87° (1895) 0.13" NA
May 9 42° 61° 23° (1956) 92° (1979) 0.13" NA
May 10 42° 61° 24° (1947) 92° (1896) 0.13" NA
May 11 43° 62° 29° (1962) 83° (1985) 0.13" NA
May 12 43° 62° 29° (1966) 88° (1991) 0.13" NA
May 13 43° 62° 28° (1962) 83° (1991) 0.13" NA
May 14 44° 63° 28° (1951) 82° (1919) 0.12" NA
May 15 44° 63° 27° (1947) 88° (1900) 0.12" NA
May 16 44° 63° 28° (1947) 90° (1951) 0.12" NA
May 17 45° 64° 27° (1957) 90° (1977) 0.12" NA
May 18 45° 64° 31° (1981) 92° (1936) 0.12" NA
May 19 45° 64° 28° (1951) 86° (1949) 0.12" NA
May 20 45° 65° 32° (2002) 86° (1959) 0.12" NA
May 21 46° 65° 33° (1976) 93° (1921) 0.12" NA
May 22 46° 65° 34° (1950) 91° (1921) 0.12" NA
May 23 46° 66° 34° (1963) 89° (1902) 0.12" NA
May 24 47° 66° 30° (1963) 91° (1991) 0.12" NA
May 25 47° 66° 27° (1956) 92° (2007) 0.12" NA
May 26 47° 67° 30° (1949) 92° (1914) 0.12" NA
May 27 48° 67° 32° (1969) 94° (1880) 0.12" NA
May 28 48° 67° 35° (1968) 90° (1988) 0.12" NA
May 29 48° 68° 35° (1964) 91° (1931) 0.11" NA
May 30 48° 68° 33° (1964) 90° (1929) 0.11" NA
May 31 49° 68° 31° (1961) 96° (1937) 0.11" NA
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