Jefferson, Wisconsin
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 26° -33° (1951) 58° (2002) 1.39" 10"
February 13° 31° -39° (1996) 67° (1999) 1.32" 6.5"
March 24° 43° -21° (1962) 83° (1986) 2.1" 7.8"
April 36° 57° -4° (1979) 90° (2002) 3.42" 1.7"
May 46° 69° 25° (1966) 93° (1978) 3.25" 0.1"
June 56° 79° 35° (2003) 101° (1988) 3.79" 0"
July 61° 83° 39° (1965) 102° (1988) 3.92" 0"
August 58° 80° 37° (1986) 102° (1988) 4.16" 0"
September 49° 73° 28° (1991) 98° (1955) 3.41" 0"
October 38° 61° 11° (1988) 88° (2007) 2.56" 0.1"
November 27° 45° -10° (1950) 78° (1999) 2.49" 2.1"
December 15° 31° -29° (1983) 67° (2001) 1.65" 9.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jul 1 59° 82° 42° (1965) 97° (1963) 0.13" NA
Jul 2 59° 83° 45° (1988) 97° (1963) 0.13" NA
Jul 3 60° 83° 45° (1968) 95° (1966) 0.13" NA
Jul 4 60° 83° 47° (1963) 94° (1949) 0.13" NA
Jul 5 60° 83° 44° (1972) 95° (1977) 0.13" NA
Jul 6 60° 83° 39° (1965) 98° (1988) 0.13" NA
Jul 7 60° 83° 45° (1984) 98° (1988) 0.13" NA
Jul 8 60° 83° 46° (1961) 96° (1955) 0.13" NA
Jul 9 60° 83° 45° (1961) 96° (1974) 0.12" NA
Jul 10 60° 83° 46° (1968) 99° (1966) 0.12" NA
Jul 11 60° 83° 44° (1975) 98° (1966) 0.12" NA
Jul 12 60° 83° 47° (1959) 94° (1954) 0.12" NA
Jul 13 61° 83° 46° (1990) 95° (1974) 0.12" NA
Jul 14 61° 83° 46° (1990) 98° (1995) 0.12" NA
Jul 15 61° 83° 46° (1967) 99° (1977) 0.12" NA
Jul 16 61° 83° 47° (1987) 102° (1988) 0.12" NA
Jul 17 61° 83° 48° (1958) 96° (1964) 0.12" NA
Jul 18 61° 84° 49° (1979) 94° (1964) 0.12" NA
Jul 19 61° 83° 49° (2003) 95° (1964) 0.12" NA
Jul 20 61° 83° 48° (1958) 95° (1957) 0.13" NA
Jul 21 61° 83° 46° (1958) 95° (1957) 0.13" NA
Jul 22 61° 83° 48° (1958) 99° (1965) 0.13" NA
Jul 23 61° 83° 45° (1985) 98° (1965) 0.13" NA
Jul 24 61° 83° 48° (1957) 96° (1976) 0.13" NA
Jul 25 61° 83° 52° (1976) 98° (1976) 0.13" NA
Jul 26 61° 83° 47° (1977) 98° (1955) 0.13" NA
Jul 27 61° 83° 49° (1991) 98° (1955) 0.13" NA
Jul 28 61° 83° 50° (1972) 93° (1988) 0.13" NA
Jul 29 61° 83° 42° (1984) 96° (1955) 0.13" NA
Jul 30 61° 83° 47° (1956) 96° (1955) 0.13" NA
Jul 31 60° 83° 46° (1990) 98° (1999) 0.13" NA
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