Grafton, Wisconsin
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 30° -26° (1963) 57° (1973) 1.5" 11.6"
February 16° 33° -29° (1996) 61° (1984) 1.46" 9.1"
March 25° 41° -15° (1962) 82° (2007) 1.96" 6.4"
April 35° 52° 11° (1982) 92° (1980) 3.28" 0.6"
May 45° 62° 23° (1966) 90° (2007) 3.43" 0.1"
June 55° 72° 29° (2003) 102° (1988) 3.82" 0"
July 61° 78° 40° (1965) 106° (1995) 4.01" 0"
August 61° 78° 42° (1986) 103° (1988) 3.95" 0"
September 52° 71° 28° (1995) 96° (1976) 3.47" 0"
October 41° 59° 16° (1988) 89° (1963) 2.44" 0.1"
November 30° 46° -10° (1976) 76° (1978) 2.36" 1"
December 18° 34° -20° (1983) 68° (2001) 1.98" 9.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 30° 46° 17° (1964) 65° (1978) 0.1" 0.1"
Apr 2 31° 47° 20° (1971) 80° (1963) 0.1" 0"
Apr 3 31° 47° 14° (1982) 69° (1995) 0.1" 0.1"
Apr 4 31° 47° 11° (1982) 64° (1981) 0.09" 0"
Apr 5 32° 48° 18° (1982) 78° (1991) 0.1" 0.1"
Apr 6 32° 48° 14° (1982) 86° (1991) 0.11" 0"
Apr 7 32° 49° 11° (1982) 81° (1991) 0.1" 0"
Apr 8 33° 49° 16° (1982) 83° (2001) 0.11" 0.1"
Apr 9 33° 49° 17° (1982) 70° (1967) 0.11" 0"
Apr 10 33° 50° 21° (1960) 83° (1977) 0.11" 0"
Apr 11 34° 50° 20° (1973) 84° (1977) 0.12" 0"
Apr 12 34° 50° 20° (1990) 82° (1977) 0.12" 0.1"
Apr 13 34° 51° 18° (1997) 76° (1960) 0.12" 0"
Apr 14 35° 51° 22° (1980) 73° (1976) 0.11" 0"
Apr 15 35° 51° 25° (1986) 85° (2006) 0.12" 0"
Apr 16 35° 52° 25° (1980) 85° (2003) 0.12" 0"
Apr 17 36° 52° 24° (1980) 79° (1964) 0.12" 0"
Apr 18 36° 52° 25° (1960) 83° (1994) 0.11" 0"
Apr 19 36° 53° 27° (1983) 87° (1985) 0.11" 0"
Apr 20 37° 53° 21° (1962) 81° (1985) 0.12" 0.1"
Apr 21 37° 54° 25° (1986) 79° (1980) 0.11" 0"
Apr 22 37° 54° 23° (1986) 92° (1980) 0.11" 0"
Apr 23 38° 54° 22° (1967) 74° (1985) 0.1" 0"
Apr 24 38° 55° 22° (1967) 82° (1994) 0.11" 0"
Apr 25 38° 55° 21° (1967) 84° (1962) 0.1" 0"
Apr 26 39° 55° 29° (1968) 85° (1962) 0.11" 0"
Apr 27 39° 56° 30° (1976) 81° (1977) 0.11" 0"
Apr 28 39° 56° 30° (1968) 77° (1974) 0.11" 0"
Apr 29 40° 56° 26° (1977) 82° (2004) 0.11" 0"
Apr 30 40° 57° 28° (1969) 85° (2007) 0.11" 0"
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