Lone Tree, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 30° -25° (1985) 70° (1989) 1.35" NA
February 19° 37° -18° (1979) 71° (1976) 1.48" NA
March 29° 49° -7° (1978) 85° (1986) 2.59" NA
April 39° 63° 9° (1982) 90° (1987) 3.66" NA
May 49° 74° 25° (1966) 93° (1975) 3.96" NA
June 58° 83° 35° (1972) 100° (1988) 4.79" NA
July 62° 86° 44° (1971) 103° (1983) 3.8" NA
August 60° 84° 40° (1986) 104° (1988) 4" NA
September 52° 78° 26° (1974) 98° (1971) 3.49" NA
October 41° 65° 15° (1988) 90° (1971) 2.86" NA
November 31° 49° -4° (1977) 81° (1968) 2.7" NA
December 19° 36° -24° (1989) 70° (1970) 2.12" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 46° 72° 30° (1984) 90° (1971) 0.1" NA
Oct 2 46° 72° 25° (1974) 89° (1971) 0.1" NA
Oct 3 46° 72° 23° (1974) 85° (1976) 0.1" NA
Oct 4 45° 71° 27° (1980) 88° (1967) 0.1" NA
Oct 5 45° 71° 26° (1980) 89° (1969) 0.1" NA
Oct 6 45° 70° 28° (1966) 85° (1982) 0.1" NA
Oct 7 44° 70° 25° (1988) 79° (1970) 0.1" NA
Oct 8 44° 69° 23° (1987) 84° (1980) 0.09" NA
Oct 9 44° 69° 32° (1964) 83° (1966) 0.09" NA
Oct 10 43° 68° 21° (1964) 80° (1969) 0.09" NA
Oct 11 43° 68° 24° (1964) 82° (1973) 0.09" NA
Oct 12 43° 68° 25° (1988) 80° (1975) 0.09" NA
Oct 13 42° 67° 22° (1988) 85° (1975) 0.09" NA
Oct 14 42° 67° 26° (1979) 85° (1989) 0.09" NA
Oct 15 41° 66° 26° (1969) 83° (1968) 0.09" NA
Oct 16 41° 66° 28° (1970) 85° (1968) 0.09" NA
Oct 17 41° 65° 28° (1966) 83° (1964) 0.09" NA
Oct 18 40° 65° 23° (1976) 83° (1965) 0.09" NA
Oct 19 40° 64° 19° (1972) 78° (1965) 0.09" NA
Oct 20 40° 64° 20° (1972) 82° (1971) 0.09" NA
Oct 21 39° 63° 24° (1974) 86° (1979) 0.09" NA
Oct 22 39° 63° 22° (1982) 80° (1975) 0.09" NA
Oct 23 39° 62° 21° (1969) 78° (1973) 0.09" NA
Oct 24 38° 61° 16° (1981) 80° (1973) 0.09" NA
Oct 25 38° 61° 23° (1966) 78° (1989) 0.09" NA
Oct 26 38° 60° 21° (1979) 76° (1971) 0.09" NA
Oct 27 38° 60° 26° (1969) 75° (1984) 0.09" NA
Oct 28 37° 59° 20° (1969) 75° (1966) 0.09" NA
Oct 29 37° 59° 21° (1969) 78° (1971) 0.09" NA
Oct 30 37° 58° 15° (1988) 80° (1971) 0.09" NA
Oct 31 36° 57° 16° (1988) 76° (1971) 0.09" NA
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