La Salle, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January -10° -1° -32.2° (1985) 19° (2008) 1.52" 8.1"
February -8° -29.4° (1979) 22.2° (1976) 1.66" 5.2"
March -2° -22.2° (2002) 27.8° (1998) 2.68" 3.3"
April 17° -10.6° (1982) 32.8° (1987) 3.38" 0.4"
May 23° -3.9° (1989) 34.4° (2006) 4.46" 0"
June 15° 28° 2.8° (1969) 38.3° (1988) 3.82" 0"
July 17° 29° 5.6° (1972) 40° (1983) 4.47" 0"
August 16° 28° 4.4° (1986) 39.4° (1988) 4.17" 0"
September 11° 25° -2.8° (1974) 36.7° (2000) 3.33" 0"
October 18° -8.9° (1988) 32.8° (2007) 3.09" 0.1"
November -1° -20.6° (1977) 26.1° (2000) 3.07" 0.6"
December -8° -29.4° (1989) 21.1° (1970) 2.36" 8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Sep 1 14° 27° 3° (1967) 35° (2000) 0.13" 0"
Sep 2 14° 27° 4° (1967) 37° (2000) 0.13" 0"
Sep 3 14° 27° 5° (1997) 35° (2000) 0.13" 0"
Sep 4 14° 27° 6° (1997) 33° (1999) 0.12" 0"
Sep 5 14° 27° 6° (1974) 35° (1999) 0.12" 0"
Sep 6 14° 27° 4° (1988) 35° (1990) 0.12" 0"
Sep 7 13° 27° 3° (1986) 35° (1978) 0.12" 0"
Sep 8 13° 26° 3° (1986) 36° (1978) 0.12" 0"
Sep 9 13° 26° 6° (1986) 34° (1971) 0.13" 0"
Sep 10 13° 26° 5° (1967) 34° (1978) 0.11" 0"
Sep 11 12° 26° 4° (1967) 34° (2005) 0.11" 0"
Sep 12 12° 26° 5° (2007) 35° (2000) 0.1" 0"
Sep 13 12° 26° 2° (1975) 35° (1991) 0.11" 0"
Sep 14 12° 25° 3° (1974) 35° (2005) 0.1" 0"
Sep 15 11° 25° 2° (1984) 32° (1994) 0.11" 0"
Sep 16 11° 25° 2.2° (2007) 33° (1978) 0.1" 0"
Sep 17 11° 25° 5° (1990) 33° (1972) 0.11" 0"
Sep 18 11° 25° 2° (1973) 33° (1988) 0.11" 0"
Sep 19 10° 24° 2° (1991) 34° (1978) 0.11" 0"
Sep 20 10° 24° 0° (1991) 32° (1978) 0.11" 0"
Sep 21 10° 24° 1° (1991) 32° (2010) 0.11" 0"
Sep 22 10° 24° 0° (1974) 31.7° (2007) 0.11" 0"
Sep 23 23° -3° (1974) 33° (2005) 0.11" 0"
Sep 24 23° -1° (1989) 32° (2010) 0.11" 0"
Sep 25 23° 1° (1984) 32.8° (2007) 0.1" 0"
Sep 26 23° 1° (1984) 32° (1999) 0.1" 0"
Sep 27 22° 1° (1975) 32° (1998) 0.11" 0"
Sep 28 22° -1° (1984) 32° (1998) 0.09" 0"
Sep 29 22° -1° (1967) 31° (1986) 0.1" 0"
Sep 30 22° -1° (1993) 32° (2002) 0.09" 0"
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