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
Feb 1 27° -27° (1985) 57° (1989) 0.04" NA
Feb 2 28° -32° (1959) 43° (1987) 0.04" NA
Feb 3 28° -39° (1996) 48° (1987) 0.04" NA
Feb 4 28° -32° (1996) 55° (1992) 0.04" NA
Feb 5 10° 28° -23° (1996) 52° (1964) 0.04" NA
Feb 6 10° 28° -18° (1959) 49° (1964) 0.04" NA
Feb 7 10° 29° -20° (1977) 45° (1987) 0.04" NA
Feb 8 10° 29° -20° (1985) 49° (1987) 0.04" NA
Feb 9 11° 29° -21° (1951) 55° (1990) 0.05" NA
Feb 10 11° 30° -24° (1994) 52° (1999) 0.05" NA
Feb 11 11° 30° -15° (1994) 57° (1999) 0.05" NA
Feb 12 12° 30° -14° (1967) 67° (1999) 0.05" NA
Feb 13 12° 30° -10° (1963) 54° (1976) 0.05" NA
Feb 14 12° 31° -7° (1951) 52° (1954) 0.05" NA
Feb 15 13° 31° -12° (1963) 60° (1954) 0.05" NA
Feb 16 13° 31° -12° (1958) 57° (1976) 0.05" NA
Feb 17 13° 32° -13° (1958) 55° (1981) 0.05" NA
Feb 18 14° 32° -22° (1979) 59° (1981) 0.05" NA
Feb 19 14° 33° -18° (1979) 55° (1954) 0.05" NA
Feb 20 14° 33° -15° (1979) 59° (1981) 0.05" NA
Feb 21 15° 33° -14° (1963) 53° (1983) 0.05" NA
Feb 22 15° 34° -11° (1978) 52° (2003) 0.05" NA
Feb 23 16° 34° -8° (1989) 62° (1984) 0.05" NA
Feb 24 16° 34° -12° (1993) 60° (2000) 0.05" NA
Feb 25 16° 35° -15° (1993) 60° (2002) 0.05" NA
Feb 26 17° 35° -12° (1963) 66° (2000) 0.05" NA
Feb 27 17° 36° -15° (1994) 64° (2000) 0.05" NA
Feb 28 18° 36° -9° (1994) 60° (1976) 0.05" NA
Feb 29 18° 36° -5° (1980) 55° (2000) 0.05" NA
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