La Salle, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 29° -26° (1985) 64° (1997) 1.46" NA
February 17° 35° -21° (1979) 72° (1976) 1.42" NA
March 28° 47° -8° (2002) 82° (1998) 2.67" NA
April 38° 61° 13° (1982) 91° (1987) 3.6" NA
May 49° 73° 25° (1989) 94° (2006) 4.55" NA
June 59° 82° 37° (1969) 101° (1988) 4.1" NA
July 63° 85° 42° (1972) 104° (1983) 4.04" NA
August 61° 83° 40° (1986) 103° (1988) 4.11" NA
September 52° 77° 27° (1974) 98° (2000) 3.63" NA
October 41° 65° 16° (1988) 91° (2007) 3" NA
November 30° 48° -5° (1977) 79° (2000) 2.83" NA
December 18° 35° -21° (1989) 70° (1970) 2.29" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 24° 40° 11° (1966) 61° (1998) 0.09" NA
Dec 2 23° 40° 1° (1976) 64° (1973) 0.09" NA
Dec 3 23° 39° -4° (1976) 70° (1970) 0.09" NA
Dec 4 22° 39° -3° (1991) 67° (1998) 0.09" NA
Dec 5 22° 38° -2° (1991) 67° (1998) 0.08" NA
Dec 6 22° 38° -5° (1977) 69° (2001) 0.08" NA
Dec 7 21° 38° -6° (1976) 58° (1963) 0.08" NA
Dec 8 21° 37° 1° (2006) 62° (1966) 0.08" NA
Dec 9 20° 37° -9° (1977) 65° (1991) 0.08" NA
Dec 10 20° 37° -10° (1977) 56° (1990) 0.08" NA
Dec 11 20° 36° -17° (1972) 57° (1965) 0.08" NA
Dec 12 19° 36° -6° (1989) 59° (1990) 0.08" NA
Dec 13 19° 35° -12° (2000) 64° (1975) 0.08" NA
Dec 14 18° 35° -8° (1989) 64° (1975) 0.08" NA
Dec 15 18° 35° -16° (1989) 66° (1975) 0.08" NA
Dec 16 18° 34° -15° (1989) 55° (1984) 0.07" NA
Dec 17 17° 34° -10° (1989) 57° (1984) 0.07" NA
Dec 18 17° 34° -5° (1963) 55° (1984) 0.07" NA
Dec 19 17° 33° -18° (1983) 58° (2002) 0.07" NA
Dec 20 16° 33° -18° (1983) 56° (1988) 0.07" NA
Dec 21 16° 33° -17° (1963) 60° (1967) 0.07" NA
Dec 22 16° 32° -20° (1989) 60° (1979) 0.07" NA
Dec 23 16° 32° -21° (1989) 60° (1979) 0.07" NA
Dec 24 15° 32° -19° (1983) 60° (1982) 0.07" NA
Dec 25 15° 32° -19° (1983) 60° (1982) 0.06" NA
Dec 26 15° 31° -15° (2000) 58° (1982) 0.06" NA
Dec 27 14° 31° -5° (1983) 50° (1994) 0.06" NA
Dec 28 14° 31° -5° (2000) 61° (1984) 0.06" NA
Dec 29 14° 31° -11° (1976) 67° (1984) 0.06" NA
Dec 30 13° 30° -11° (1983) 56° (1965) 0.06" NA
Dec 31 13° 30° -18° (1976) 62° (2002) 0.06" NA
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