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
Mar 1 19° 37° -21° (1962) 62° (2000) 0.05" 0.2"
Mar 2 20° 37° -14° (1962) 62° (1964) 0.05" 0.2"
Mar 3 20° 38° -1° (1978) 67° (1974) 0.05" 0.2"
Mar 4 20° 38° -10° (2002) 70° (1983) 0.05" 0.2"
Mar 5 21° 39° -8° (2002) 69° (1983) 0.06" 0.2"
Mar 6 21° 39° -19° (1960) 69° (2000) 0.05" 0.2"
Mar 7 22° 40° -6° (1960) 71° (2000) 0.05" 0.2"
Mar 8 22° 40° -13° (1960) 78° (2000) 0.05" 0.2"
Mar 9 22° 40° -4° (1978) 74° (2000) 0.06" 0.2"
Mar 10 23° 41° -8° (2003) 65° (1955) 0.05" 0.2"
Mar 11 23° 41° -2° (2003) 64° (1973) 0.05" 0.1"
Mar 12 24° 42° -3° (1960) 64° (1977) 0.05" 0.2"
Mar 13 24° 42° 2° (1950) 76° (1990) 0.05" 0.1"
Mar 14 24° 43° -5° (1960) 72° (1995) 0.06" 0.2"
Mar 15 25° 43° 1° (1993) 74° (1995) 0.05" 0.1"
Mar 16 25° 44° 7° (1997) 67° (1995) 0.06" 0.1"
Mar 17 26° 44° 2° (1967) 73° (1966) 0.06" 0.2"
Mar 18 26° 44° -5° (1959) 74° (2003) 0.06" 0.1"
Mar 19 26° 45° 2° (1960) 64° (1976) 0.06" 0.1"
Mar 20 27° 45° -4° (1965) 75° (1976) 0.07" 0.1"
Mar 21 27° 46° 0° (1965) 74° (1953) 0.08" 0.1"
Mar 22 27° 46° 9° (1959) 69° (1991) 0.07" 0.1"
Mar 23 28° 47° 2° (1960) 67° (1994) 0.07" 0.1"
Mar 24 28° 47° -2° (1965) 67° (1963) 0.07" 0.1"
Mar 25 29° 48° -5° (1960) 69° (1967) 0.08" 0.1"
Mar 26 29° 48° 0° (1960) 78° (2007) 0.08" 0.1"
Mar 27 29° 49° 0° (1965) 80° (2007) 0.08" 0.1"
Mar 28 30° 49° 5° (1970) 77° (1989) 0.08" 0"
Mar 29 30° 50° 7° (1969) 76° (1986) 0.09" 0.1"
Mar 30 31° 50° 2° (1969) 83° (1986) 0.08" 0.1"
Mar 31 31° 51° 7° (1969) 74° (1963) 0.09" 0.1"
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