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
Aug 1 61° 82° 43° (1990) 97° (2001) 0.14" 0"
Aug 2 61° 82° 45° (1985) 102° (1988) 0.13" 0"
Aug 3 61° 82° 47° (1985) 99° (1988) 0.13" 0"
Aug 4 61° 82° 45° (1951) 95° (1982) 0.13" 0"
Aug 5 60° 82° 46° (1957) 97° (1988) 0.14" 0"
Aug 6 60° 81° 45° (1971) 94° (1968) 0.13" 0"
Aug 7 60° 81° 42° (1990) 91° (1968) 0.13" 0"
Aug 8 60° 81° 46° (1976) 94° (1988) 0.12" 0"
Aug 9 60° 81° 43° (1964) 97° (1983) 0.13" 0"
Aug 10 60° 81° 46° (1986) 93° (2001) 0.12" 0"
Aug 11 60° 81° 45° (1967) 91° (1958) 0.13" 0"
Aug 12 60° 81° 41° (1983) 94° (2002) 0.13" 0"
Aug 13 60° 81° 46° (1950) 95° (1988) 0.13" 0"
Aug 14 60° 81° 41° (1963) 92° (1995) 0.14" 0"
Aug 15 60° 81° 42° (1979) 95° (1988) 0.14" 0"
Aug 16 60° 81° 41° (1979) 94° (1988) 0.14" 0"
Aug 17 59° 81° 45° (1976) 101° (1988) 0.14" 0"
Aug 18 59° 81° 41° (1963) 101° (1988) 0.14" 0"
Aug 19 59° 81° 44° (1985) 96° (1955) 0.13" 0"
Aug 20 59° 81° 39° (1950) 99° (1955) 0.13" 0"
Aug 21 59° 80° 43° (1950) 100° (1955) 0.13" 0"
Aug 22 59° 80° 46° (1967) 94° (2003) 0.12" 0"
Aug 23 59° 80° 46° (1952) 94° (1962) 0.12" 0"
Aug 24 58° 80° 41° (1984) 96° (1948) 0.11" 0"
Aug 25 58° 80° 40° (1958) 93° (1978) 0.12" 0"
Aug 26 58° 80° 42° (1964) 95° (1973) 0.11" 0"
Aug 27 58° 80° 40° (1968) 95° (1973) 0.12" 0"
Aug 28 57° 79° 37° (1986) 96° (1955) 0.12" 0"
Aug 29 57° 79° 39° (1965) 96° (1984) 0.12" 0"
Aug 30 57° 79° 46° (1986) 97° (1984) 0.11" 0"
Aug 31 57° 79° 42° (2009) 98° (1953) 0.12" 0"
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