Iroquois, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 14° 31° -25° (1985) 77° (2005) 1.76" 7.8"
February 18° 36° -21° (1963) 72° (1996) 1.6" 6.9"
March 29° 48° -8° (1960) 90° (1949) 2.77" 3.5"
April 38° 61° 3° (1982) 89° (1986) 3.37" 1.1"
May 50° 73° 27° (1968) 95° (2001) 4.05" 0"
June 60° 82° 37° (2003) 104° (1988) 4.51" 0"
July 63° 85° 43° (2001) 104° (1954) 4.03" 0"
August 60° 83° 38° (1965) 104° (1988) 3.67" 0"
September 53° 78° 27° (1991) 100° (1953) 3.25" 0"
October 41° 65° 16° (1952) 92° (1954) 2.84" 0.1"
November 31° 49° -9° (1950) 81° (1950) 3.2" 2"
December 20° 36° -21° (1989) 70° (1982) 2.43" 6.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 47° 73° 28° (1984) 90° (1971) 0.1" NA
Oct 2 46° 72° 25° (2003) 89° (1953) 0.09" NA
Oct 3 46° 72° 28° (1952) 92° (1954) 0.09" NA
Oct 4 45° 71° 30° (1968) 89° (1951) 0.09" NA
Oct 5 45° 71° 26° (1980) 86° (2007) 0.09" NA
Oct 6 44° 70° 20° (1952) 90° (1963) 0.09" NA
Oct 7 44° 70° 22° (1952) 89° (1963) 0.09" NA
Oct 8 44° 69° 22° (1952) 91° (2007) 0.09" NA
Oct 9 43° 69° 25° (2000) 90° (2007) 0.09" NA
Oct 10 43° 68° 26° (1964) 86° (1962) 0.09" NA
Oct 11 42° 68° 25° (1964) 87° (1962) 0.09" NA
Oct 12 42° 68° 23° (1987) 85° (1962) 0.09" NA
Oct 13 42° 67° 21° (1988) 87° (1975) 0.09" NA
Oct 14 41° 67° 24° (1988) 85° (1989) 0.09" NA
Oct 15 41° 66° 30° (2002) 86° (1953) 0.09" NA
Oct 16 41° 66° 26° (1991) 85° (1956) 0.09" NA
Oct 17 40° 65° 28° (1976) 87° (1950) 0.09" NA
Oct 18 40° 65° 21° (1948) 86° (1950) 0.09" NA
Oct 19 40° 64° 21° (1992) 88° (2007) 0.09" NA
Oct 20 39° 64° 22° (1964) 87° (1953) 0.09" NA
Oct 21 39° 63° 21° (1952) 87° (1953) 0.09" NA
Oct 22 38° 62° 21° (1976) 88° (1953) 0.09" NA
Oct 23 38° 62° 23° (1969) 83° (1963) 0.09" NA
Oct 24 38° 61° 19° (1981) 81° (1963) 0.09" NA
Oct 25 38° 61° 22° (2006) 81° (1963) 0.09" NA
Oct 26 37° 60° 19° (1962) 83° (1963) 0.09" NA
Oct 27 37° 60° 26° (1988) 80° (1963) 0.09" NA
Oct 28 37° 59° 21° (1976) 77° (1966) 0.1" NA
Oct 29 36° 59° 16° (1952) 79° (1971) 0.1" NA
Oct 30 36° 58° 17° (1988) 84° (1950) 0.1" NA
Oct 31 36° 57° 24° (1954) 84° (1950) 0.1" NA
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