Lanark, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 29° -31° (1910) 61° (2002) 1.43" 8.8"
February 13° 35° -30° (1996) 70° (2000) 1.52" 6.9"
March 25° 47° -16° (1962) 85° (1986) 2.63" 5.3"
April 35° 60° -2° (1982) 92° (1930) 3.67" 1.9"
May 46° 72° 20° (2005) 104° (1934) 4.34" 0"
June 54° 82° 31° (1988) 104° (1934) 4.77" 0"
July 59° 85° 35° (1904) 108° (1936) 3.83" 0"
August 56° 83° 32° (1986) 103° (1936) 4.54" 0"
September 47° 76° 23° (1983) 99° (1939) 3.48" 0"
October 36° 64° 4° (1925) 91° (1997) 2.73" 0.1"
November 26° 47° -15° (1976) 79° (2000) 2.84" 2.2"
December 14° 34° -28° (1914) 69° (1998) 2.02" 7.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Oct 1 41° 71° 25° (2003) 88° (1971) 0.09" NA
Oct 2 41° 70° 19° (1974) 88° (1953) 0.09" NA
Oct 3 40° 70° 22° (1987) 87° (2006) 0.09" NA
Oct 4 40° 69° 15° (1989) 91° (1997) 0.09" NA
Oct 5 40° 69° 15° (1989) 88° (1922) 0.09" NA
Oct 6 39° 69° 19° (1988) 90° (2007) 0.09" NA
Oct 7 39° 68° 19° (1988) 88° (1939) 0.09" NA
Oct 8 38° 68° 19° (1988) 89° (2007) 0.09" NA
Oct 9 38° 67° 19° (1987) 84° (1905) 0.09" NA
Oct 10 38° 67° 20° (1964) 88° (1930) 0.09" NA
Oct 11 37° 66° 16° (1987) 87° (1928) 0.09" NA
Oct 12 37° 66° 15° (1988) 84° (1920) 0.09" NA
Oct 13 37° 65° 13° (1988) 84° (1995) 0.09" NA
Oct 14 36° 65° 13° (1988) 87° (1975) 0.09" NA
Oct 15 36° 65° 17° (1937) 85° (1947) 0.08" NA
Oct 16 36° 64° 22° (1976) 85° (1910) 0.08" NA
Oct 17 35° 64° 20° (1992) 85° (1910) 0.08" NA
Oct 18 35° 63° 16° (1952) 85° (1950) 0.08" NA
Oct 19 35° 63° 16° (1992) 84° (1953) 0.08" NA
Oct 20 34° 62° 18° (1930) 83° (1953) 0.08" NA
Oct 21 34° 62° 16° (1952) 84° (1947) 0.09" NA
Oct 22 34° 61° 14° (1976) 82° (1963) 0.09" NA
Oct 23 33° 60° 19° (1969) 84° (1963) 0.09" NA
Oct 24 33° 60° 15° (1981) 80° (1963) 0.09" NA
Oct 25 33° 59° 17° (1987) 79° (1989) 0.09" NA
Oct 26 33° 59° 15° (1962) 82° (1927) 0.09" NA
Oct 27 32° 58° 14° (1988) 83° (1927) 0.09" NA
Oct 28 32° 58° 8° (1925) 80° (1927) 0.09" NA
Oct 29 32° 57° 8° (1925) 79° (1922) 0.09" NA
Oct 30 31° 57° 4° (1925) 81° (1950) 0.09" NA
Oct 31 31° 56° 8° (1988) 82° (1950) 0.09" NA
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