Cornwall, Connecticut
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 32° -30° (1961) 69° (1950) 2.96" NA
February 17° 36° -22° (1971) 72° (1954) 2.75" NA
March 24° 44° -11° (1950) 88° (1998) 3.4" NA
April 34° 57° 6° (1954) 93° (1990) 3.61" NA
May 44° 69° 20° (1978) 94° (2000) 4.11" NA
June 54° 76° 31° (2001) 98° (1952) 4.65" NA
July 58° 81° 37° (1979) 100° (1991) 4.63" NA
August 57° 79° 32° (1976) 100° (1955) 4.14" NA
September 49° 71° 24° (1963) 101° (1953) 4" NA
October 38° 59° 14° (1972) 86° (1949) 4.58" NA
November 30° 48° 5° (1995) 81° (1982) 3.72" NA
December 20° 36° -16° (1980) 72° (1998) 3.4" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 15° 32° -7° (1998) 59° (1966) 0.09" NA
Jan 2 15° 32° -17° (1968) 58° (1979) 0.1" NA
Jan 3 15° 32° -7° (1970) 57° (2000) 0.09" NA
Jan 4 15° 32° -14° (1981) 63° (1950) 0.1" NA
Jan 5 14° 32° -14° (1996) 62° (1950) 0.1" NA
Jan 6 14° 32° -16° (1996) 56° (1998) 0.1" NA
Jan 7 14° 32° -14° (1996) 50° (1962) 0.09" NA
Jan 8 14° 32° -9° (1981) 60° (2008) 0.09" NA
Jan 9 14° 32° -20° (1968) 59° (1978) 0.09" NA
Jan 10 14° 31° -20° (1968) 50° (1963) 0.09" NA
Jan 11 14° 31° -22° (1968) 58° (1975) 0.09" NA
Jan 12 14° 31° -25° (1981) 58° (1980) 0.1" NA
Jan 13 14° 31° -24° (1981) 54° (1992) 0.09" NA
Jan 14 14° 31° -18° (1957) 60° (1992) 0.1" NA
Jan 15 13° 31° -18° (1957) 62° (1995) 0.1" NA
Jan 16 13° 31° -17° (1994) 60° (1995) 0.09" NA
Jan 17 13° 31° -22° (1971) 59° (1990) 0.1" NA
Jan 18 13° 31° -24° (1957) 63° (1973) 0.09" NA
Jan 19 13° 31° -23° (1971) 60° (1949) 0.09" NA
Jan 20 14° 32° -19° (1994) 58° (1951) 0.1" NA
Jan 21 14° 32° -26° (1994) 56° (2006) 0.09" NA
Jan 22 14° 32° -30° (1961) 60° (1959) 0.11" NA
Jan 23 14° 32° -22° (1961) 60° (1957) 0.1" NA
Jan 24 14° 32° -20° (1961) 59° (1967) 0.09" NA
Jan 25 14° 32° -13° (1961) 53° (1953) 0.1" NA
Jan 26 14° 32° -14° (1982) 69° (1950) 0.1" NA
Jan 27 14° 32° -27° (1994) 63° (1974) 0.09" NA
Jan 28 14° 32° -23° (1961) 58° (2002) 0.09" NA
Jan 29 14° 32° -15° (1961) 60° (2002) 0.1" NA
Jan 30 14° 32° -16° (1965) 55° (2006) 0.1" NA
Jan 31 14° 33° -17° (1965) 57° (1974) 0.1" NA
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