Groton, Connecticut
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 20° 38° -14° (1961) 65° (1967) 4.39" 8"
February 22° 39° -12° (1965) 67° (1976) 3.54" 6.9"
March 29° 47° 0° (1967) 78° (1998) 4.46" 3.2"
April 38° 56° 14° (1982) 88° (2002) 4.23" 0.3"
May 48° 66° 30° (1966) 91° (1987) 3.79" 0"
June 57° 75° 38° (1967) 95° (1991) 3.67" 0"
July 63° 81° 47° (1988) 101° (1991) 3.31" 0"
August 62° 80° 41° (1965) 99° (1975) 4.46" 0"
September 55° 73° 29° (1957) 93° (1983) 4.06" 0"
October 43° 62° 22° (1966) 83° (1959) 3.98" 0"
November 35° 53° 8° (1989) 75° (1982) 4.51" 0.6"
December 26° 43° -10° (1980) 69° (2001) 4.32" 4.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 53° 71° 38° (1967) 88° (1987) 0.12" NA
Jun 2 53° 71° 42° (1971) 84° (1961) 0.12" NA
Jun 3 53° 72° 40° (1986) 81° (1985) 0.12" NA
Jun 4 53° 72° 42° (1957) 84° (1971) 0.13" NA
Jun 5 54° 72° 42° (1958) 84° (1984) 0.13" NA
Jun 6 54° 72° 42° (1964) 88° (1968) 0.13" NA
Jun 7 54° 73° 43° (1958) 88° (1984) 0.13" NA
Jun 8 55° 73° 45° (1960) 92° (1984) 0.13" NA
Jun 9 55° 73° 43° (1980) 92° (1984) 0.13" NA
Jun 10 55° 74° 42° (1957) 92° (1984) 0.13" NA
Jun 11 55° 74° 40° (1980) 92° (1973) 0.13" NA
Jun 12 56° 74° 39° (1972) 92° (1973) 0.13" NA
Jun 13 56° 74° 44° (1979) 90° (1983) 0.13" NA
Jun 14 56° 75° 46° (1970) 89° (1988) 0.13" NA
Jun 15 57° 75° 39° (1978) 91° (1988) 0.12" NA
Jun 16 57° 75° 43° (1961) 94° (1957) 0.12" NA
Jun 17 57° 75° 45° (1965) 91° (1957) 0.12" NA
Jun 18 57° 76° 39° (1958) 85° (1962) 0.12" NA
Jun 19 58° 76° 47° (1986) 92° (1994) 0.12" NA
Jun 20 58° 76° 46° (1959) 92° (1995) 0.12" NA
Jun 21 58° 76° 46° (1970) 91° (1964) 0.12" NA
Jun 22 58° 77° 46° (1963) 87° (1965) 0.12" NA
Jun 23 59° 77° 48° (1992) 89° (1983) 0.12" NA
Jun 24 59° 77° 47° (1958) 91° (1983) 0.12" NA
Jun 25 59° 77° 49° (1979) 90° (2003) 0.12" NA
Jun 26 59° 78° 47° (1986) 89° (1997) 0.12" NA
Jun 27 60° 78° 49° (1965) 94° (1980) 0.11" NA
Jun 28 60° 78° 48° (1995) 88° (1978) 0.11" NA
Jun 29 60° 78° 49° (1970) 95° (1991) 0.11" NA
Jun 30 60° 78° 49° (1988) 95° (1964) 0.11" NA
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