Lancaster, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 21° 38° -19° (1985) 72° (2000) 2.9" NA
February 25° 44° -12° (1951) 78° (1996) 2.73" NA
March 35° 54° 0° (1978) 84° (2007) 4.15" NA
April 44° 66° 20° (2007) 90° (1989) 4.24" NA
May 54° 76° 32° (2005) 96° (2007) 5.12" NA
June 63° 85° 43° (1992) 101° (1988) 3.7" NA
July 67° 89° 50° (2006) 102° (1988) 4.24" NA
August 65° 87° 43° (1986) 102° (2007) 3.61" NA
September 57° 81° 33° (1995) 99° (1999) 2.8" NA
October 45° 70° 24° (1988) 93° (2007) 3.03" NA
November 36° 55° 2° (1950) 85° (2000) 4.19" NA
December 25° 43° -17° (1989) 73° (1998) 3.05" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 39° 61° 22° (1995) 83° (1986) 0.14" NA
Apr 2 40° 61° 28° (1995) 76° (1978) 0.14" NA
Apr 3 40° 61° 22° (1987) 81° (2007) 0.14" NA
Apr 4 40° 62° 22° (2002) 82° (2007) 0.14" NA
Apr 5 41° 62° 25° (2007) 80° (2005) 0.13" NA
Apr 6 41° 63° 24° (1982) 85° (1988) 0.13" NA
Apr 7 41° 63° 21° (2007) 84° (2001) 0.13" NA
Apr 8 41° 63° 20° (2007) 86° (2001) 0.13" NA
Apr 9 42° 64° 22° (2007) 84° (2001) 0.13" NA
Apr 10 42° 64° 24° (1997) 86° (2001) 0.13" NA
Apr 11 43° 64° 28° (1989) 84° (1977) 0.14" NA
Apr 12 43° 65° 29° (1990) 85° (2001) 0.14" NA
Apr 13 43° 65° 26° (1950) 83° (1977) 0.14" NA
Apr 14 43° 65° 25° (1950) 85° (2006) 0.14" NA
Apr 15 44° 66° 29° (1950) 88° (2006) 0.14" NA
Apr 16 44° 66° 32° (1949) 86° (1977) 0.14" NA
Apr 17 44° 66° 28° (1951) 86° (1977) 0.14" NA
Apr 18 45° 67° 26° (2001) 89° (2002) 0.14" NA
Apr 19 45° 67° 25° (1983) 85° (2002) 0.14" NA
Apr 20 45° 67° 28° (1983) 82° (1985) 0.14" NA
Apr 21 46° 68° 34° (1950) 84° (1987) 0.14" NA
Apr 22 46° 68° 33° (1978) 87° (1987) 0.14" NA
Apr 23 46° 68° 31° (1986) 87° (1980) 0.15" NA
Apr 24 47° 69° 32° (2005) 83° (1990) 0.15" NA
Apr 25 47° 69° 35° (2005) 85° (1990) 0.15" NA
Apr 26 47° 69° 34° (2006) 87° (1989) 0.15" NA
Apr 27 48° 70° 28° (2006) 90° (1989) 0.15" NA
Apr 28 48° 70° 33° (2006) 90° (1951) 0.15" NA
Apr 29 48° 70° 37° (1988) 89° (1951) 0.16" NA
Apr 30 49° 71° 36° (1988) 89° (1951) 0.16" NA
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