Rochester, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 19° 35° -22° (1884) 73° (1909) 1.82" 6.4"
February 23° 40° -24° (1905) 78° (1930) 1.89" 5.5"
March 32° 52° -12° (1960) 91° (1907) 2.63" 2.5"
April 42° 65° 17° (1920) 90° (1986) 3.51" 0.3"
May 53° 75° 28° (1966) 101° (1934) 4.24" 0"
June 62° 83° 39° (2003) 104° (1934) 4.46" 0"
July 65° 86° 48° (1975) 112° (1954) 3.94" 0"
August 64° 85° 43° (1986) 108° (1934) 3.24" 0"
September 55° 79° 31° (1899) 101° (1984) 2.9" 0"
October 44° 66° 13° (1925) 93° (2006) 3.15" 0"
November 34° 52° -3° (1964) 83° (1950) 3.21" 0.6"
December 23° 38° -21° (1989) 74° (1984) 2.52" 5.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 48° 73° 32° (2003) 91° (1897) 0.1" 0"
Oct 2 48° 72° 23° (2003) 93° (1953) 0.1" 0"
Oct 3 47° 72° 30° (2004) 93° (2006) 0.1" 0"
Oct 4 47° 71° 32° (1968) 90° (1897) 0.1" 0"
Oct 5 47° 71° 28° (2004) 89° (2007) 0.1" 0"
Oct 6 46° 70° 24° (1952) 90° (1963) 0.1" 0"
Oct 7 46° 70° 25° (1952) 91° (2007) 0.09" 0"
Oct 8 46° 70° 25° (1952) 90° (1939) 0.1" 0"
Oct 9 46° 69° 25° (2000) 88° (1938) 0.1" 0"
Oct 10 45° 69° 26° (1964) 89° (1963) 0.09" 0"
Oct 11 45° 68° 28° (1987) 90° (1962) 0.1" 0"
Oct 12 45° 68° 24° (1987) 89° (1962) 0.1" 0"
Oct 13 44° 68° 26° (1909) 88° (1975) 0.1" 0"
Oct 14 44° 67° 27° (1979) 88° (1897) 0.09" 0"
Oct 15 44° 67° 27° (2006) 89° (1963) 0.1" 0"
Oct 16 44° 66° 30° (1976) 85° (1963) 0.11" 0"
Oct 17 43° 66° 26° (1948) 86° (1964) 0.1" 0"
Oct 18 43° 66° 24° (1948) 86° (1953) 0.11" 0"
Oct 19 43° 65° 19° (1992) 85° (1953) 0.11" 0"
Oct 20 43° 65° 24° (1964) 87° (2003) 0.1" 0"
Oct 21 43° 64° 25° (1930) 89° (1979) 0.11" 0"
Oct 22 42° 64° 23° (1997) 85° (1963) 0.11" 0"
Oct 23 42° 64° 24° (1981) 85° (1963) 0.1" 0"
Oct 24 42° 63° 23° (1999) 83° (1963) 0.11" 0"
Oct 25 42° 63° 20° (1887) 86° (1940) 0.1" 0"
Oct 26 41° 62° 22° (1962) 85° (1963) 0.1" 0"
Oct 27 41° 62° 26° (1925) 84° (1927) 0.11" 0"
Oct 28 41° 62° 20° (1925) 84° (1927) 0.1" 0"
Oct 29 41° 61° 17° (1952) 83° (2004) 0.11" 0"
Oct 30 40° 61° 13° (1925) 89° (1950) 0.1" 0"
Oct 31 40° 60° 22° (1925) 86° (1950) 0.1" 0"
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