La Salle, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -11° -2° -32.2° (1985) 17.8° (1997) 1.46" NA
February -8° -29.4° (1979) 22.2° (1976) 1.42" NA
March -2° -22.2° (2002) 27.8° (1998) 2.67" NA
April 16° -10.6° (1982) 32.8° (1987) 3.6" NA
May 23° -3.9° (1989) 34.4° (2006) 4.55" NA
June 15° 28° 2.8° (1969) 38.3° (1988) 4.1" NA
July 17° 29° 5.6° (1972) 40° (1983) 4.04" NA
August 16° 28° 4.4° (1986) 39.4° (1988) 4.11" NA
September 11° 25° -2.8° (1974) 36.7° (2000) 3.63" NA
October 18° -8.9° (1988) 32.8° (2007) 3" NA
November -1° -20.6° (1977) 26.1° (2000) 2.83" NA
December -8° -29.4° (1989) 21.1° (1970) 2.29" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 -4.4° 4.4° -12° (1966) 16° (1998) 0.09" NA
Dec 2 -5° 4.4° -17° (1976) 18° (1973) 0.09" NA
Dec 3 -5° 3.9° -20° (1976) 21° (1970) 0.09" NA
Dec 4 -5.6° 3.9° -19° (1991) 19° (1998) 0.09" NA
Dec 5 -5.6° 3.3° -19° (1991) 19° (1998) 0.08" NA
Dec 6 -5.6° 3.3° -21° (1977) 21° (2001) 0.08" NA
Dec 7 -6.1° 3.3° -21° (1976) 14° (1963) 0.08" NA
Dec 8 -6.1° 2.8° -17.2° (2006) 17° (1966) 0.08" NA
Dec 9 -6.7° 2.8° -23° (1977) 18° (1991) 0.08" NA
Dec 10 -6.7° 2.8° -23° (1977) 13° (1990) 0.08" NA
Dec 11 -6.7° 2.2° -27° (1972) 14° (1965) 0.08" NA
Dec 12 -7.2° 2.2° -21° (1989) 15° (1990) 0.08" NA
Dec 13 -7.2° 1.7° -24° (2000) 18° (1975) 0.08" NA
Dec 14 -7.8° 1.7° -22° (1989) 18° (1975) 0.08" NA
Dec 15 -7.8° 1.7° -27° (1989) 19° (1975) 0.08" NA
Dec 16 -7.8° 1.1° -26° (1989) 13° (1984) 0.07" NA
Dec 17 -8.3° 1.1° -23° (1989) 14° (1984) 0.07" NA
Dec 18 -8.3° 1.1° -21° (1963) 13° (1984) 0.07" NA
Dec 19 -8.3° 0.6° -28° (1983) 14° (2002) 0.07" NA
Dec 20 -8.9° 0.6° -28° (1983) 13° (1988) 0.07" NA
Dec 21 -8.9° 0.6° -27° (1963) 16° (1967) 0.07" NA
Dec 22 -8.9° -29° (1989) 16° (1979) 0.07" NA
Dec 23 -8.9° -29° (1989) 16° (1979) 0.07" NA
Dec 24 -9.4° -28° (1983) 16° (1982) 0.07" NA
Dec 25 -9.4° -28° (1983) 16° (1982) 0.06" NA
Dec 26 -9.4° -0.6° -26° (2000) 14° (1982) 0.06" NA
Dec 27 -10° -0.6° -21° (1983) 10° (1994) 0.06" NA
Dec 28 -10° -0.6° -21° (2000) 16° (1984) 0.06" NA
Dec 29 -10° -0.6° -24° (1976) 19° (1984) 0.06" NA
Dec 30 -10.6° -1.1° -24° (1983) 13° (1965) 0.06" NA
Dec 31 -10.6° -1.1° -28° (1976) 17° (2002) 0.06" NA
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