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
May 1 6.1° 19.4° -1° (1978) 30.6° (2007) 0.14" NA
May 2 6.7° 20° -2° (1978) 32° (1992) 0.14" NA
May 3 6.7° 20° -2° (2005) 30° (1969) 0.14" NA
May 4 6.7° 20° -3° (2005) 31° (2001) 0.14" NA
May 5 7.2° 20.6° -2° (2005) 31° (1982) 0.14" NA
May 6 7.2° 20.6° -4° (1974) 29° (2000) 0.14" NA
May 7 7.2° 21.1° -4° (1989) 31° (2004) 0.14" NA
May 8 7.8° 21.1° -1° (1989) 31° (1979) 0.14" NA
May 9 7.8° 21.1° -1° (1966) 32° (1979) 0.14" NA
May 10 8.3° 21.7° -3° (1966) 32° (1979) 0.15" NA
May 11 8.3° 21.7° 2° (1969) 31° (1987) 0.15" NA
May 12 8.3° 21.7° 0° (1981) 32° (1987) 0.15" NA
May 13 8.9° 22.2° -1° (1981) 31° (1982) 0.15" NA
May 14 8.9° 22.2° 0° (1981) 32° (1991) 0.15" NA
May 15 8.9° 22.2° 0° (1973) 32° (1998) 0.15" NA
May 16 9.4° 22.8° 1° (1997) 32° (1977) 0.15" NA
May 17 9.4° 22.8° 1° (1973) 34° (2001) 0.15" NA
May 18 9.4° 23.3° 1° (2002) 34° (1964) 0.15" NA
May 19 10° 23.3° 1° (2002) 34° (1996) 0.15" NA
May 20 10° 23.3° 3° (1967) 34° (1996) 0.15" NA
May 21 10.6° 23.9° -1° (2002) 32° (1972) 0.15" NA
May 22 10.6° 23.9° 0° (2002) 33° (1964) 0.15" NA
May 23 10.6° 23.9° 2° (1979) 32° (1964) 0.15" NA
May 24 11.1° 24.4° 2° (1992) 33° (1972) 0.15" NA
May 25 11.1° 24.4° -1° (1992) 33° (1967) 0.15" NA
May 26 11.1° 24.4° 2° (1992) 34° (1977) 0.15" NA
May 27 11.7° 25° 0° (1992) 33° (1978) 0.15" NA
May 28 11.7° 25° 1° (1992) 33° (1978) 0.15" NA
May 29 11.7° 25.6° 2° (1984) 34.4° (2006) 0.15" NA
May 30 12.2° 25.6° 4° (1996) 33.9° (2006) 0.15" NA
May 31 12.2° 25.6° 4° (1972) 33° (1994) 0.14" NA
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