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
Dec 1 25° 41° 7° (1985) 65° (1970) 0.08" NA
Dec 2 24° 41° 1° (1976) 66° (1982) 0.08" NA
Dec 3 24° 40° -2° (1976) 70° (1970) 0.08" NA
Dec 4 23° 40° 10° (1978) 59° (1989) 0.08" NA
Dec 5 23° 39° 8° (1976) 63° (1975) 0.08" NA
Dec 6 22° 39° -7° (1964) 59° (1988) 0.08" NA
Dec 7 22° 39° -7° (1976) 58° (1963) 0.08" NA
Dec 8 22° 38° 0° (1976) 62° (1966) 0.08" NA
Dec 9 21° 38° -5° (1978) 56° (1965) 0.08" NA
Dec 10 21° 37° -13° (1978) 57° (1979) 0.07" NA
Dec 11 21° 37° -18° (1972) 58° (1965) 0.07" NA
Dec 12 20° 37° -1° (1985) 58° (1965) 0.07" NA
Dec 13 20° 36° -5° (1985) 63° (1975) 0.07" NA
Dec 14 19° 36° -10° (1985) 63° (1975) 0.07" NA
Dec 15 19° 36° -15° (1989) 63° (1971) 0.07" NA
Dec 16 19° 35° -10° (1989) 60° (1984) 0.07" NA
Dec 17 18° 35° -7° (1983) 52° (1977) 0.07" NA
Dec 18 18° 35° -15° (1985) 51° (1976) 0.07" NA
Dec 19 18° 34° -11° (1985) 52° (1988) 0.07" NA
Dec 20 18° 34° -13° (1963) 55° (1967) 0.06" NA
Dec 21 17° 34° -24° (1989) 61° (1967) 0.06" NA
Dec 22 17° 33° -20° (1989) 56° (1965) 0.06" NA
Dec 23 17° 33° -18° (1989) 61° (1982) 0.06" NA
Dec 24 16° 33° -23° (1983) 57° (1965) 0.06" NA
Dec 25 16° 33° -15° (1983) 59° (1982) 0.06" NA
Dec 26 16° 32° -9° (1983) 48° (1971) 0.06" NA
Dec 27 16° 32° -2° (1977) 48° (1984) 0.06" NA
Dec 28 15° 32° 2° (1963) 67° (1984) 0.06" NA
Dec 29 15° 32° -5° (1983) 64° (1984) 0.06" NA
Dec 30 15° 32° -9° (1983) 57° (1965) 0.05" NA
Dec 31 15° 31° -13° (1976) 59° (1965) 0.05" NA
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