Groton, Massachusetts
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 33° -29° (1957) 69° (2007) 3.42" 16.5"
February 15° 37° -25° (1958) 70° (1997) 3.5" 13.2"
March 23° 45° -13° (1950) 85° (1998) 4.3" 10.7"
April 34° 58° 8° (1969) 93° (2002) 4.36" 0.8"
May 44° 69° 22° (1966) 96° (1962) 4.07" 0.2"
June 54° 77° 31° (1964) 99° (1953) 4.4" 0"
July 60° 83° 37° (1965) 101° (1949) 3.88" 0"
August 58° 81° 31° (1965) 105° (1948) 3.91" 0"
September 49° 73° 24° (1951) 99° (1953) 3.72" 0"
October 37° 62° 14° (1974) 88° (1950) 4.44" 0"
November 29° 50° 1° (1989) 81° (1950) 4.26" 2.1"
December 19° 39° -22° (1963) 73° (1998) 3.85" 11.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 50° 73° 33° (1967) 92° (1999) 0.16" 0"
Jun 2 50° 74° 38° (1953) 90° (1951) 0.17" 0"
Jun 3 50° 74° 35° (1966) 88° (1999) 0.16" 0"
Jun 4 51° 74° 33° (1965) 88° (1967) 0.16" 0"
Jun 5 51° 75° 32° (1964) 90° (1967) 0.17" 0"
Jun 6 51° 75° 31° (1964) 92° (1968) 0.16" 0"
Jun 7 52° 75° 32° (1958) 97° (1999) 0.16" 0"
Jun 8 52° 75° 34° (1951) 96° (1999) 0.16" 0"
Jun 9 52° 76° 35° (1957) 93° (1984) 0.16" 0"
Jun 10 53° 76° 34° (1975) 95° (2008) 0.16" 0"
Jun 11 53° 76° 35° (1980) 99° (2008) 0.15" 0"
Jun 12 53° 77° 34° (1972) 93° (1949) 0.17" 0"
Jun 13 53° 77° 38° (1953) 95° (1956) 0.16" 0"
Jun 14 54° 77° 39° (1970) 95° (1956) 0.16" 0"
Jun 15 54° 77° 37° (1953) 96° (1988) 0.16" 0"
Jun 16 54° 78° 36° (1961) 95° (1957) 0.15" 0"
Jun 17 55° 78° 36° (1965) 95° (1957) 0.14" 0"
Jun 18 55° 78° 35° (1954) 96° (1994) 0.14" 0"
Jun 19 55° 78° 37° (1950) 95° (1994) 0.14" 0"
Jun 20 56° 79° 38° (1952) 97° (1953) 0.13" 0"
Jun 21 56° 79° 43° (1970) 95° (1949) 0.14" 0"
Jun 22 56° 79° 42° (1969) 94° (1954) 0.13" 0"
Jun 23 56° 79° 39° (1958) 92° (1975) 0.12" 0"
Jun 24 57° 80° 44° (1958) 94° (1976) 0.13" 0"
Jun 25 57° 80° 43° (1953) 96° (1949) 0.12" 0"
Jun 26 57° 80° 38° (1965) 99° (1953) 0.14" 0"
Jun 27 57° 80° 40° (1965) 97° (1952) 0.12" 0"
Jun 28 57° 80° 42° (1970) 95° (1991) 0.13" 0"
Jun 29 58° 81° 41° (1970) 92° (1959) 0.12" 0"
Jun 30 58° 81° 44° (1988) 97° (1964) 0.13" 0"
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