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) 1.54" 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
Jan 1 14° 31° -11° (1969) 46° (1966) 0.05" NA
Jan 2 14° 31° -16° (1979) 48° (1964) 0.05" NA
Jan 3 14° 31° -12° (1979) 47° (1964) 0.05" NA
Jan 4 14° 31° -10° (1969) 47° (1964) 0.05" NA
Jan 5 14° 31° -10° (1969) 49° (1966) 0.05" NA
Jan 6 13° 30° -15° (1979) 51° (1965) 0.05" NA
Jan 7 13° 30° -15° (1988) 52° (1965) 0.05" NA
Jan 8 13° 30° -12° (1968) 60° (1965) 0.05" NA
Jan 9 13° 30° -12° (1970) 47° (1966) 0.05" NA
Jan 10 13° 30° -22° (1982) 59° (1975) 0.05" NA
Jan 11 13° 30° -22° (1979) 57° (1975) 0.05" NA
Jan 12 13° 30° -16° (1974) 49° (1972) 0.04" NA
Jan 13 13° 30° -4° (1974) 50° (1967) 0.04" NA
Jan 14 13° 30° -9° (1979) 46° (1987) 0.04" NA
Jan 15 13° 30° -21° (1979) 57° (1990) 0.04" NA
Jan 16 13° 30° -21° (1977) 58° (1990) 0.04" NA
Jan 17 13° 30° -19° (1977) 57° (1990) 0.04" NA
Jan 18 13° 30° -14° (1976) 54° (1973) 0.04" NA
Jan 19 13° 30° -16° (1985) 50° (1972) 0.04" NA
Jan 20 13° 30° -25° (1985) 51° (1967) 0.04" NA
Jan 21 13° 30° -20° (1984) 58° (1964) 0.04" NA
Jan 22 13° 30° -19° (1970) 59° (1964) 0.04" NA
Jan 23 13° 30° -5° (1987) 60° (1967) 0.04" NA
Jan 24 13° 31° -8° (1987) 68° (1967) 0.04" NA
Jan 25 13° 31° -6° (1987) 64° (1967) 0.04" NA
Jan 26 14° 31° -10° (1982) 50° (1973) 0.04" NA
Jan 27 14° 31° -9° (1986) 49° (1990) 0.04" NA
Jan 28 14° 31° -22° (1977) 45° (1968) 0.04" NA
Jan 29 14° 31° -18° (1966) 53° (1970) 0.04" NA
Jan 30 14° 32° -14° (1966) 54° (1974) 0.04" NA
Jan 31 15° 32° -8° (1972) 70° (1989) 0.04" NA
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