Sun Prairie, Wisconsin
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 25° -37° (1951) 56° (1989) 1.25" 12.9"
February 14° 31° -29° (1996) 64° (2000) 1.28" 8.6"
March 25° 43° -29° (1962) 82° (1986) 2.28" 7.1"
April 35° 57° 0° (1982) 94° (1980) 3.35" 3.5"
May 46° 69° 19° (1978) 101° (1934) 3.25" 0.1"
June 56° 78° 31° (1972) 101° (1988) 4.05" 0"
July 61° 82° 36° (1965) 107° (1936) 3.93" 0"
August 59° 79° 35° (1968) 102° (1988) 4.33" 0"
September 50° 71° 25° (1974) 99° (1953) 3.08" 0"
October 39° 60° 13° (1988) 90° (1976) 2.18" 0.4"
November 28° 43° -11° (1947) 77° (1933) 2.31" 4.7"
December 16° 30° -25° (1983) 64° (2001) 1.66" 12.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 21° 36° -2° (1930) 62° (1970) 0.07" NA
Dec 2 21° 35° -10° (1976) 62° (1982) 0.07" NA
Dec 3 21° 35° -12° (1940) 61° (1998) 0.07" NA
Dec 4 20° 34° -6° (1977) 60° (2001) 0.06" NA
Dec 5 20° 34° -3° (2007) 64° (2001) 0.06" NA
Dec 6 19° 33° -11° (1972) 56° (1998) 0.06" NA
Dec 7 19° 33° -15° (1972) 60° (1916) 0.06" NA
Dec 8 19° 33° -10° (1917) 60° (1946) 0.06" NA
Dec 9 18° 32° -11° (1958) 60° (1946) 0.06" NA
Dec 10 18° 32° -16° (1919) 55° (1911) 0.06" NA
Dec 11 17° 32° -17° (1976) 59° (1949) 0.06" NA
Dec 12 17° 31° -10° (1962) 53° (1991) 0.06" NA
Dec 13 17° 31° -18° (1903) 57° (1975) 0.05" NA
Dec 14 16° 30° -17° (1901) 59° (1975) 0.05" NA
Dec 15 16° 30° -16° (1901) 51° (1998) 0.05" NA
Dec 16 16° 30° -12° (1972) 57° (1959) 0.05" NA
Dec 17 15° 30° -13° (1972) 54° (1939) 0.05" NA
Dec 18 15° 29° -18° (1983) 53° (2002) 0.05" NA
Dec 19 15° 29° -25° (1983) 53° (1918) 0.05" NA
Dec 20 14° 29° -17° (1963) 53° (1967) 0.05" NA
Dec 21 14° 28° -18° (1989) 54° (1967) 0.05" NA
Dec 22 14° 28° -17° (1983) 50° (1931) 0.05" NA
Dec 23 13° 28° -21° (1983) 51° (1904) 0.05" NA
Dec 24 13° 28° -23° (1983) 52° (1955) 0.05" NA
Dec 25 13° 27° -21° (2000) 56° (1982) 0.05" NA
Dec 26 12° 27° -22° (1962) 50° (1936) 0.05" NA
Dec 27 12° 27° -21° (1950) 50° (2003) 0.05" NA
Dec 28 12° 27° -21° (1924) 62° (1984) 0.04" NA
Dec 29 11° 26° -15° (1917) 54° (1984) 0.04" NA
Dec 30 11° 26° -12° (1963) 56° (2004) 0.04" NA
Dec 31 11° 26° -16° (1967) 55° (1965) 0.04" NA
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