Rollo, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 25° -25° (1999) 64° (1967) 1.39" 8.7"
February 13° 31° -33° (1996) 68° (1976) 1.26" 5.7"
March 25° 43° -16° (2002) 83° (1986) 2.34" 5"
April 36° 57° 9° (1982) 92° (2002) 3.47" 1.2"
May 47° 70° 24° (2005) 94° (1975) 4.23" 0"
June 56° 79° 36° (1972) 101° (1988) 4.4" 0"
July 60° 82° 41° (2000) 101° (1966) 3.77" 0"
August 58° 80° 37° (1986) 99° (1988) 4.17" 0"
September 50° 73° 29° (1995) 93° (1978) 3.81" 0"
October 38° 61° 16° (1962) 90° (2007) 2.76" 0.2"
November 26° 45° -7° (1976) 76° (1968) 3" 2.3"
December 14° 31° -23° (1983) 65° (2001) 2.16" 7.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 42° 64° 27° (1978) 80° (1965) 0.13" NA
May 2 42° 64° 26° (1978) 87° (1992) 0.13" NA
May 3 42° 65° 24° (2005) 86° (1968) 0.13" NA
May 4 43° 65° 29° (2005) 85° (1969) 0.13" NA
May 5 43° 66° 32° (1968) 85° (1969) 0.13" NA
May 6 44° 66° 29° (1989) 86° (1980) 0.13" NA
May 7 44° 66° 27° (1989) 86° (2004) 0.13" NA
May 8 44° 67° 29° (1989) 86° (2007) 0.13" NA
May 9 45° 67° 27° (1966) 90° (1963) 0.13" NA
May 10 45° 68° 26° (1980) 90° (1963) 0.13" NA
May 11 46° 68° 30° (1966) 89° (1979) 0.13" NA
May 12 46° 68° 30° (1981) 89° (1987) 0.13" NA
May 13 46° 69° 30° (1981) 86° (1982) 0.13" NA
May 14 47° 69° 35° (1996) 87° (1991) 0.13" NA
May 15 47° 69° 34° (1997) 90° (2007) 0.14" NA
May 16 47° 70° 33° (1997) 86° (2001) 0.14" NA
May 17 48° 70° 36° (1973) 90° (1977) 0.14" NA
May 18 48° 71° 30° (2002) 88° (1971) 0.14" NA
May 19 48° 71° 33° (2002) 90° (1964) 0.14" NA
May 20 49° 71° 35° (1981) 94° (1975) 0.14" NA
May 21 49° 72° 32° (2002) 93° (1977) 0.14" NA
May 22 49° 72° 36° (1963) 90° (1977) 0.14" NA
May 23 50° 72° 35° (1963) 92° (1975) 0.14" NA
May 24 50° 73° 34° (1992) 90° (1964) 0.14" NA
May 25 50° 73° 32° (1992) 90° (1965) 0.14" NA
May 26 51° 73° 34° (1979) 93° (1967) 0.14" NA
May 27 51° 74° 36° (1971) 92° (1967) 0.14" NA
May 28 51° 74° 33° (1971) 92° (1978) 0.14" NA
May 29 52° 74° 33° (1965) 92° (1969) 0.15" NA
May 30 52° 75° 35° (1984) 88° (1978) 0.15" NA
May 31 52° 75° 38° (1996) 90° (1994) 0.15" NA
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