Grafton, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 17° 35° -25° (1977) 74° (1950) 1.92" 5.2"
February 22° 41° -22° (1982) 80° (1972) 2.01" 4.5"
March 32° 53° -11° (1960) 86° (1985) 3.51" 3.9"
April 42° 64° 18° (1961) 92° (1951) 4.14" 0.5"
May 52° 74° 28° (1976) 96° (1953) 3.95" 0"
June 61° 83° 37° (1972) 104° (1954) 3.68" 0"
July 66° 88° 43° (1962) 112° (1954) 3.51" 0"
August 63° 86° 38° (1986) 105° (1964) 2.91" 0"
September 55° 79° 27° (1983) 102° (1954) 3.23" 0"
October 43° 68° 17° (1981) 93° (1963) 2.86" 0"
November 34° 53° -2° (1991) 84° (1950) 3.77" 1.3"
December 23° 40° -19° (1989) 74° (1948) 2.82" 4.2"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Mar 1 27° 46° -1° (1960) 76° (1972) 0.09" NA
Mar 2 27° 47° -3° (1980) 76° (1976) 0.09" NA
Mar 3 28° 47° 5° (1980) 82° (1974) 0.09" NA
Mar 4 28° 48° -3° (1978) 79° (1974) 0.1" NA
Mar 5 28° 48° -11° (1960) 84° (1956) 0.1" NA
Mar 6 29° 49° -10° (1960) 85° (1956) 0.1" NA
Mar 7 29° 49° 8° (1989) 82° (1956) 0.1" NA
Mar 8 29° 49° 0° (1996) 81° (2000) 0.1" NA
Mar 9 30° 50° 2° (1996) 79° (1974) 0.1" NA
Mar 10 30° 50° 8° (1978) 84° (1955) 0.11" NA
Mar 11 30° 51° 7° (1969) 81° (1972) 0.11" NA
Mar 12 31° 51° 3° (1969) 81° (1972) 0.11" NA
Mar 13 31° 51° 2° (1968) 81° (1990) 0.11" NA
Mar 14 32° 52° 9° (1993) 79° (1971) 0.11" NA
Mar 15 32° 52° 11° (1993) 77° (1977) 0.11" NA
Mar 16 32° 53° 17° (1970) 74° (1995) 0.11" NA
Mar 17 33° 53° 18° (1962) 76° (1995) 0.12" NA
Mar 18 33° 53° 6° (1960) 79° (1989) 0.12" NA
Mar 19 33° 54° 10° (1965) 76° (1995) 0.12" NA
Mar 20 34° 54° 12° (1965) 75° (1979) 0.12" NA
Mar 21 34° 55° 9° (1960) 80° (1966) 0.12" NA
Mar 22 34° 55° 10° (2006) 84° (1997) 0.12" NA
Mar 23 35° 55° 9° (1960) 80° (1988) 0.12" NA
Mar 24 35° 56° 9° (1974) 82° (1994) 0.12" NA
Mar 25 35° 56° 4° (1974) 79° (1967) 0.13" NA
Mar 26 36° 56° 4° (1955) 82° (1950) 0.13" NA
Mar 27 36° 57° 13° (1955) 83° (1991) 0.13" NA
Mar 28 36° 57° 20° (1966) 80° (2007) 0.13" NA
Mar 29 37° 58° 18° (1969) 86° (1985) 0.13" NA
Mar 30 37° 58° 17° (1964) 85° (1986) 0.13" NA
Mar 31 37° 58° 18° (1969) 84° (1986) 0.13" NA
Advertisements
Track Severe Weather on mobile