Jefferson, Wisconsin
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 10° 28° -33° (1951) 58° (2002) 1.3" 9.8"
February 15° 32° -39° (1996) 67° (1999) 1.41" 8"
March 25° 44° -21° (1962) 83° (1986) 1.96" 4.3"
April 37° 58° -4° (1979) 90° (2002) 3.51" 1.1"
May 47° 69° 25° (1966) 93° (1978) 3.75" 0.2"
June 57° 79° 35° (2003) 101° (1988) 4.2" 0"
July 62° 83° 39° (1965) 102° (1988) 3.86" 0"
August 59° 81° 37° (1986) 102° (1988) 3.95" 0"
September 50° 73° 28° (1991) 98° (1955) 3.38" 0"
October 39° 61° 11° (1988) 88° (2007) 2.74" 0.1"
November 29° 46° -10° (1950) 78° (1999) 2.45" 1.8"
December 16° 32° -29° (1983) 67° (2001) 1.7" 9.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 61° 83° 42° (1965) 97° (1963) 0.13" 0"
Jul 2 61° 83° 45° (1988) 97° (1963) 0.13" 0"
Jul 3 61° 83° 45° (1968) 95° (1966) 0.12" 0"
Jul 4 61° 83° 47° (1963) 94° (1949) 0.12" 0"
Jul 5 62° 83° 44° (1972) 95° (1977) 0.12" 0"
Jul 6 62° 83° 39° (1965) 98° (1988) 0.13" 0"
Jul 7 62° 83° 45° (1984) 98° (1988) 0.12" 0"
Jul 8 62° 83° 46° (1961) 96° (1955) 0.13" 0"
Jul 9 62° 83° 45° (1961) 96° (1974) 0.13" 0"
Jul 10 62° 83° 46° (1968) 99° (1966) 0.13" 0"
Jul 11 62° 83° 44° (1975) 98° (1966) 0.13" 0"
Jul 12 62° 83° 47° (1959) 94° (1954) 0.13" 0"
Jul 13 62° 83° 46° (1990) 95° (1974) 0.13" 0"
Jul 14 62° 83° 46° (1990) 98° (1995) 0.13" 0"
Jul 15 62° 83° 46° (1967) 99° (1977) 0.12" 0"
Jul 16 62° 83° 47° (1987) 102° (1988) 0.12" 0"
Jul 17 62° 83° 48° (1958) 96° (1964) 0.13" 0"
Jul 18 62° 83° 49° (1979) 94° (1964) 0.12" 0"
Jul 19 62° 83° 49° (2003) 95° (1964) 0.12" 0"
Jul 20 62° 83° 48° (1958) 95° (1957) 0.12" 0"
Jul 21 61° 83° 46° (1958) 95° (1957) 0.12" 0"
Jul 22 61° 82° 48° (1958) 99° (1965) 0.12" 0"
Jul 23 61° 82° 45° (1985) 98° (1965) 0.12" 0"
Jul 24 61° 82° 48° (1957) 96° (1976) 0.13" 0"
Jul 25 61° 82° 52° (1976) 98° (1976) 0.12" 0"
Jul 26 61° 82° 47° (1977) 98° (1955) 0.13" 0"
Jul 27 61° 82° 49° (1991) 98° (1955) 0.12" 0"
Jul 28 61° 82° 50° (1972) 93° (1988) 0.12" 0"
Jul 29 61° 82° 42° (1984) 96° (1955) 0.13" 0"
Jul 30 61° 82° 47° (1956) 96° (1955) 0.12" 0"
Jul 31 61° 82° 46° (1990) 98° (1999) 0.12" 0"
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