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
Nov 1 31° 55° 13° (1930) 79° (1933) 0.09" NA
Nov 2 31° 55° 12° (1988) 79° (2000) 0.09" NA
Nov 3 30° 54° 10° (1951) 74° (1938) 0.09" NA
Nov 4 30° 54° 10° (1951) 74° (1987) 0.09" NA
Nov 5 30° 53° 2° (1951) 74° (1924) 0.1" NA
Nov 6 29° 52° 11° (1930) 73° (1924) 0.1" NA
Nov 7 29° 52° 5° (1991) 78° (1915) 0.1" NA
Nov 8 29° 51° 1° (1925) 74° (2001) 0.1" NA
Nov 9 29° 51° 4° (1925) 77° (1999) 0.1" NA
Nov 10 28° 50° 14° (1973) 76° (1999) 0.1" NA
Nov 11 28° 50° 8° (1950) 75° (1911) 0.1" NA
Nov 12 28° 49° 7° (1976) 69° (1902) 0.1" NA
Nov 13 27° 49° 3° (1986) 69° (1909) 0.1" NA
Nov 14 27° 48° 3° (1986) 73° (1999) 0.1" NA
Nov 15 27° 47° -1° (1959) 72° (1990) 0.1" NA
Nov 16 26° 47° 0° (1933) 75° (1931) 0.1" NA
Nov 17 26° 46° 0° (1959) 72° (1941) 0.1" NA
Nov 18 25° 46° 7° (1959) 70° (1953) 0.1" NA
Nov 19 25° 45° 6° (1903) 75° (1930) 0.1" NA
Nov 20 25° 45° 3° (1914) 70° (1913) 0.09" NA
Nov 21 24° 44° 2° (1926) 70° (1913) 0.09" NA
Nov 22 24° 44° 1° (1929) 68° (1913) 0.09" NA
Nov 23 23° 43° 1° (1950) 65° (1931) 0.09" NA
Nov 24 23° 43° -6° (1950) 65° (1931) 0.09" NA
Nov 25 23° 42° -2° (1950) 64° (1915) 0.09" NA
Nov 26 22° 42° -10° (1977) 66° (1914) 0.09" NA
Nov 27 22° 41° 0° (1930) 67° (1990) 0.09" NA
Nov 28 21° 41° -11° (1930) 66° (1998) 0.09" NA
Nov 29 21° 40° -15° (1976) 65° (1998) 0.09" NA
Nov 30 20° 40° -13° (1976) 68° (1998) 0.08" NA
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