Ontario, Wisconsin
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 22° -34° (1972) 54° (1981) 1.26" NA
February 13° 29° -34° (1996) 59° (2000) 1.03" NA
March 23° 41° -22° (1962) 83° (1986) 1.87" NA
April 36° 56° 5° (1954) 92° (1952) 3.45" NA
May 47° 69° 21° (1981) 91° (2006) 3.67" NA
June 56° 77° 34° (1964) 100° (1988) 4.01" NA
July 61° 81° 41° (1951) 101° (1995) 4.82" NA
August 59° 78° 34° (1950) 102° (1988) 4.62" NA
September 51° 70° 27° (1951) 95° (1978) 4.23" NA
October 40° 57° 16° (1981) 91° (1976) 2.66" NA
November 26° 40° -12° (1950) 73° (1964) 2.54" NA
December 13° 26° -28° (1983) 62° (2001) 1.3" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 19° 32° 0° (1976) 58° (1962) 0.06" NA
Dec 2 18° 31° -13° (1976) 61° (1982) 0.06" NA
Dec 3 18° 31° -10° (1985) 60° (1982) 0.06" NA
Dec 4 17° 30° -6° (1991) 60° (1960) 0.06" NA
Dec 5 17° 30° -1° (2000) 62° (2001) 0.06" NA
Dec 6 16° 29° -15° (1977) 54° (1998) 0.05" NA
Dec 7 16° 29° -11° (1976) 44° (1963) 0.05" NA
Dec 8 16° 29° -7° (1976) 47° (1999) 0.05" NA
Dec 9 15° 28° -15° (1958) 43° (1979) 0.05" NA
Dec 10 15° 28° -16° (1977) 50° (1979) 0.05" NA
Dec 11 14° 27° -11° (1976) 53° (1949) 0.04" NA
Dec 12 14° 27° -17° (1962) 51° (1949) 0.04" NA
Dec 13 14° 27° -17° (1985) 46° (1998) 0.04" NA
Dec 14 13° 26° -18° (1985) 49° (1998) 0.04" NA
Dec 15 13° 26° -13° (1958) 44° (1979) 0.04" NA
Dec 16 12° 26° -17° (1951) 51° (1959) 0.04" NA
Dec 17 12° 26° -16° (1953) 44° (1962) 0.04" NA
Dec 18 12° 25° -28° (1983) 51° (2002) 0.04" NA
Dec 19 11° 25° -25° (1983) 46° (2002) 0.04" NA
Dec 20 11° 25° -21° (1983) 39° (1949) 0.04" NA
Dec 21 11° 24° -14° (1963) 43° (1979) 0.03" NA
Dec 22 10° 24° -19° (1983) 47° (1957) 0.03" NA
Dec 23 10° 24° -25° (1983) 45° (1957) 0.03" NA
Dec 24 10° 24° -25° (1983) 41° (1955) 0.03" NA
Dec 25 23° -26° (2000) 46° (1982) 0.03" NA
Dec 26 23° -20° (1962) 41° (1959) 0.03" NA
Dec 27 23° -21° (1950) 44° (1959) 0.03" NA
Dec 28 23° -16° (1961) 57° (1984) 0.03" NA
Dec 29 23° -16° (1976) 55° (1984) 0.03" NA
Dec 30 22° -16° (1976) 48° (2004) 0.04" NA
Dec 31 22° -22° (1976) 50° (2004) 0.04" NA
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