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
Jun 1 51° 78° 32° (1910) 104° (1934) 0.16" NA
Jun 2 51° 78° 35° (1901) 103° (1934) 0.16" NA
Jun 3 51° 78° 34° (1994) 96° (1934) 0.16" NA
Jun 4 52° 79° 35° (1945) 96° (1934) 0.16" NA
Jun 5 52° 79° 35° (1945) 95° (1934) 0.16" NA
Jun 6 52° 79° 37° (1907) 95° (1933) 0.16" NA
Jun 7 52° 80° 37° (1935) 95° (1963) 0.16" NA
Jun 8 53° 80° 32° (1901) 97° (1934) 0.16" NA
Jun 9 53° 80° 35° (1977) 96° (1911) 0.17" NA
Jun 10 53° 81° 31° (1988) 96° (1933) 0.17" NA
Jun 11 54° 81° 34° (1988) 96° (1933) 0.17" NA
Jun 12 54° 81° 31° (1903) 94° (1901) 0.17" NA
Jun 13 54° 81° 36° (1903) 94° (1904) 0.17" NA
Jun 14 54° 82° 38° (1933) 94° (1976) 0.17" NA
Jun 15 54° 82° 39° (1909) 98° (1987) 0.16" NA
Jun 16 55° 82° 38° (1917) 98° (1918) 0.16" NA
Jun 17 55° 82° 38° (1989) 95° (1933) 0.16" NA
Jun 18 55° 82° 43° (1903) 94° (1919) 0.16" NA
Jun 19 55° 83° 41° (1909) 97° (1994) 0.16" NA
Jun 20 56° 83° 39° (1914) 99° (1933) 0.16" NA
Jun 21 56° 83° 38° (1992) 100° (1988) 0.16" NA
Jun 22 56° 83° 38° (1902) 99° (1988) 0.16" NA
Jun 23 56° 83° 39° (1903) 97° (1923) 0.16" NA
Jun 24 56° 84° 39° (1903) 98° (1923) 0.15" NA
Jun 25 57° 84° 41° (2004) 100° (1931) 0.15" NA
Jun 26 57° 84° 40° (2004) 100° (1931) 0.15" NA
Jun 27 57° 84° 38° (1905) 102° (1934) 0.15" NA
Jun 28 57° 84° 41° (1911) 104° (1934) 0.15" NA
Jun 29 57° 84° 40° (1989) 102° (1931) 0.14" NA
Jun 30 57° 84° 39° (1988) 102° (1931) 0.14" NA
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