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
Sep 1 61° 84° 45° (1987) 97° (1995) 0.1" NA
Sep 2 61° 84° 49° (1987) 97° (1999) 0.1" NA
Sep 3 61° 84° 50° (1994) 98° (2002) 0.1" NA
Sep 4 60° 84° 47° (1997) 99° (1999) 0.1" NA
Sep 5 60° 84° 45° (1997) 99° (1999) 0.1" NA
Sep 6 60° 83° 42° (1988) 98° (1998) 0.1" NA
Sep 7 60° 83° 48° (1988) 99° (1990) 0.1" NA
Sep 8 59° 83° 40° (1986) 99° (1990) 0.1" NA
Sep 9 59° 83° 44° (1986) 97° (2002) 0.1" NA
Sep 10 59° 82° 48° (1986) 99° (1980) 0.1" NA
Sep 11 58° 82° 47° (1993) 97° (2002) 0.09" NA
Sep 12 58° 82° 45° (1999) 95° (1983) 0.09" NA
Sep 13 58° 82° 42° (1986) 96° (1991) 0.09" NA
Sep 14 57° 81° 42° (1985) 96° (1980) 0.09" NA
Sep 15 57° 81° 39° (2007) 95° (1991) 0.09" NA
Sep 16 57° 81° 37° (2007) 94° (1991) 0.09" NA
Sep 17 56° 80° 43° (1984) 93° (1991) 0.09" NA
Sep 18 56° 80° 44° (1981) 89° (1948) 0.09" NA
Sep 19 55° 80° 41° (1991) 93° (1948) 0.09" NA
Sep 20 55° 80° 37° (1991) 95° (1948) 0.09" NA
Sep 21 55° 79° 36° (1999) 94° (2007) 0.09" NA
Sep 22 54° 79° 37° (1983) 93° (2007) 0.09" NA
Sep 23 54° 79° 35° (1983) 95° (2007) 0.09" NA
Sep 24 53° 78° 33° (1995) 96° (2007) 0.09" NA
Sep 25 53° 78° 35° (1995) 93° (2007) 0.09" NA
Sep 26 53° 78° 34° (2001) 91° (1986) 0.09" NA
Sep 27 52° 77° 36° (1989) 92° (1986) 0.09" NA
Sep 28 52° 77° 37° (1984) 93° (1998) 0.09" NA
Sep 29 51° 77° 37° (1989) 95° (1999) 0.09" NA
Sep 30 51° 76° 35° (2003) 92° (1986) 0.09" NA
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