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
Mar 1 18° 36° -21° (1962) 62° (2000) 0.05" NA
Mar 2 19° 37° -14° (1962) 62° (1964) 0.05" NA
Mar 3 19° 37° -1° (1978) 67° (1974) 0.05" NA
Mar 4 19° 38° -10° (2002) 70° (1983) 0.05" NA
Mar 5 20° 38° -8° (2002) 69° (1983) 0.05" NA
Mar 6 20° 39° -19° (1960) 69° (2000) 0.05" NA
Mar 7 21° 39° -6° (1960) 71° (2000) 0.05" NA
Mar 8 21° 39° -13° (1960) 78° (2000) 0.06" NA
Mar 9 21° 40° -4° (1978) 74° (2000) 0.06" NA
Mar 10 22° 40° -8° (2003) 65° (1955) 0.06" NA
Mar 11 22° 41° -2° (2003) 64° (1973) 0.06" NA
Mar 12 23° 41° -3° (1960) 64° (1977) 0.06" NA
Mar 13 23° 42° 2° (1950) 76° (1990) 0.06" NA
Mar 14 23° 42° -5° (1960) 72° (1995) 0.06" NA
Mar 15 24° 43° 1° (1993) 74° (1995) 0.06" NA
Mar 16 24° 43° 7° (1997) 67° (1995) 0.07" NA
Mar 17 25° 43° 2° (1967) 73° (1966) 0.07" NA
Mar 18 25° 44° -5° (1959) 74° (2003) 0.07" NA
Mar 19 25° 44° 2° (1960) 64° (1976) 0.07" NA
Mar 20 26° 45° -4° (1965) 75° (1976) 0.07" NA
Mar 21 26° 45° 0° (1965) 74° (1953) 0.07" NA
Mar 22 27° 46° 9° (1959) 69° (1991) 0.08" NA
Mar 23 27° 46° 2° (1960) 67° (1994) 0.08" NA
Mar 24 27° 47° -2° (1965) 67° (1963) 0.08" NA
Mar 25 28° 47° -5° (1960) 69° (1967) 0.08" NA
Mar 26 28° 47° 0° (1960) 78° (2007) 0.08" NA
Mar 27 29° 48° 0° (1965) 80° (2007) 0.09" NA
Mar 28 29° 48° 5° (1970) 77° (1989) 0.09" NA
Mar 29 29° 49° 7° (1969) 76° (1986) 0.09" NA
Mar 30 30° 49° 2° (1969) 83° (1986) 0.09" NA
Mar 31 30° 50° 7° (1969) 74° (1963) 0.09" NA
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