Hartford, Wisconsin
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 24° -35° (1982) 55° (1996) 1.31" 9.5"
February 11° 30° -34° (1959) 63° (2000) 1.07" 5.8"
March 23° 41° -23° (1962) 81° (1986) 1.93" 7.3"
April 34° 54° 1° (1982) 88° (1980) 3.02" 1.9"
May 45° 67° 20° (1978) 94° (1999) 3.07" 0.2"
June 53° 77° 31° (1988) 100° (1988) 3.82" 0"
July 58° 81° 39° (1965) 105° (1999) 4.13" 0"
August 56° 79° 36° (1986) 101° (1988) 4.15" 0"
September 48° 70° 23° (1976) 97° (1953) 3.61" 0"
October 37° 59° 15° (1976) 89° (1982) 2.62" 0"
November 26° 43° -11° (1976) 75° (1999) 2.22" 2.6"
December 13° 30° -29° (1983) 65° (2001) 1.57" 8.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 39° 61° 20° (1978) 84° (2001) 0.1" NA
May 2 40° 62° 24° (1986) 88° (1959) 0.1" NA
May 3 40° 62° 25° (2004) 87° (1959) 0.1" NA
May 4 40° 63° 25° (2005) 85° (1980) 0.1" NA
May 5 41° 63° 27° (1957) 87° (1959) 0.1" NA
May 6 41° 64° 25° (1970) 87° (1959) 0.1" NA
May 7 41° 64° 25° (1974) 85° (1965) 0.1" NA
May 8 42° 64° 28° (1976) 85° (1965) 0.1" NA
May 9 42° 65° 24° (1966) 84° (1979) 0.09" NA
May 10 43° 65° 22° (1966) 85° (1987) 0.09" NA
May 11 43° 66° 28° (1990) 83° (1979) 0.09" NA
May 12 43° 66° 25° (1981) 84° (1991) 0.09" NA
May 13 44° 66° 27° (1971) 86° (1991) 0.09" NA
May 14 44° 67° 31° (1964) 85° (1977) 0.09" NA
May 15 44° 67° 30° (1984) 88° (2007) 0.09" NA
May 16 45° 68° 30° (1997) 88° (1962) 0.1" NA
May 17 45° 68° 26° (1983) 87° (1962) 0.1" NA
May 18 45° 68° 28° (2002) 90° (1962) 0.1" NA
May 19 46° 69° 33° (1976) 89° (1962) 0.1" NA
May 20 46° 69° 29° (1981) 90° (1975) 0.1" NA
May 21 46° 70° 28° (2002) 87° (1970) 0.1" NA
May 22 47° 70° 32° (1971) 89° (1956) 0.1" NA
May 23 47° 70° 29° (1963) 87° (1975) 0.1" NA
May 24 47° 71° 29° (1979) 87° (1977) 0.1" NA
May 25 48° 71° 31° (1992) 88° (1965) 0.1" NA
May 26 48° 71° 30° (1961) 89° (1985) 0.1" NA
May 27 48° 72° 28° (1992) 89° (1967) 0.1" NA
May 28 48° 72° 35° (1971) 88° (1977) 0.11" NA
May 29 49° 72° 31° (1965) 90° (1991) 0.11" NA
May 30 49° 73° 32° (1984) 94° (1999) 0.11" NA
May 31 49° 73° 32° (1966) 93° (1999) 0.11" NA
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