Lanark, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 11° 30° -31° (1910) 61° (2002) 1.48" 9.6"
February 16° 36° -30° (1996) 70° (2000) 1.77" 6.2"
March 26° 47° -16° (1962) 85° (1986) 2.61" 3.5"
April 37° 61° -2° (1982) 92° (1930) 3.7" 0.7"
May 47° 72° 20° (2005) 104° (1934) 4.42" 0"
June 57° 81° 31° (1988) 104° (1934) 4.98" 0"
July 61° 85° 35° (1904) 108° (1936) 4.52" 0"
August 59° 83° 32° (1986) 103° (1936) 4.5" 0"
September 49° 76° 23° (1983) 99° (1939) 3.46" 0"
October 38° 63° 4° (1925) 91° (1997) 3.14" 0.1"
November 29° 48° -15° (1976) 79° (2000) 2.9" 1.2"
December 16° 34° -28° (1914) 69° (1998) 2.24" 8.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 42° 67° 24° (1903) 89° (1952) 0.13" 0"
May 2 43° 67° 24° (1911) 88° (1901) 0.12" 0"
May 3 43° 68° 20° (2005) 88° (1928) 0.13" 0"
May 4 43° 68° 23° (2005) 90° (1918) 0.13" 0"
May 5 44° 68° 24° (1910) 90° (1949) 0.13" 0"
May 6 44° 69° 22° (1989) 95° (1934) 0.13" 0"
May 7 44° 69° 15° (1989) 92° (1934) 0.12" 0"
May 8 45° 69° 24° (1989) 88° (1916) 0.13" 0"
May 9 45° 70° 24° (1983) 95° (1934) 0.13" 0"
May 10 46° 70° 23° (1966) 89° (1922) 0.13" 0"
May 11 46° 70° 22° (1907) 88° (1922) 0.13" 0"
May 12 46° 70° 22° (1989) 89° (1922) 0.14" 0"
May 13 46° 71° 26° (1989) 88° (1940) 0.14" 0"
May 14 47° 71° 27° (1910) 92° (1932) 0.15" 0"
May 15 47° 71° 27° (1904) 92° (1941) 0.14" 0"
May 16 47° 72° 29° (1907) 88° (1911) 0.14" 0"
May 17 48° 72° 31° (1930) 90° (1934) 0.14" 0"
May 18 48° 72° 30° (2002) 92° (1934) 0.15" 0"
May 19 48° 73° 31° (1929) 93° (1934) 0.15" 0"
May 20 49° 73° 28° (1981) 93° (1934) 0.15" 0"
May 21 49° 73° 29° (2002) 92° (1934) 0.16" 0"
May 22 49° 74° 32° (2006) 93° (1925) 0.16" 0"
May 23 50° 74° 29° (1963) 91° (1921) 0.15" 0"
May 24 50° 74° 33° (1935) 91° (1939) 0.16" 0"
May 25 50° 75° 25° (1925) 94° (2010) 0.15" 0"
May 26 50° 75° 29° (1901) 93° (1967) 0.16" 0"
May 27 51° 75° 29° (1989) 93° (1985) 0.15" 0"
May 28 51° 76° 30° (1989) 91° (1978) 0.15" 0"
May 29 51° 76° 28° (1984) 99° (1934) 0.15" 0"
May 30 52° 76° 31° (1996) 97° (1934) 0.16" 0"
May 31 52° 77° 34° (1984) 104° (1934) 0.16" 0"
Advertisements
Track Severe Weather on mobile