Lancaster, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 24° 39° -19° (1985) 72° (2000) 3.14" 2"
February 27° 44° -12° (1951) 78° (1996) 3.15" 2.8"
March 36° 54° 0° (1978) 84° (2007) 3.99" 1"
April 46° 66° 20° (2007) 90° (1989) 4.19" 0"
May 56° 75° 32° (2005) 96° (2007) 5.93" 0"
June 66° 84° 43° (1992) 101° (1988) 3.71" 0"
July 69° 87° 50° (2006) 102° (1988) 4.19" 0"
August 67° 86° 43° (1986) 102° (2007) 3.31" 0"
September 58° 80° 33° (1995) 99° (1999) 2.94" 0"
October 46° 68° 24° (1988) 93° (2007) 3.75" 0.1"
November 37° 55° 2° (1950) 85° (2000) 4.23" 0"
December 27° 42° -17° (1989) 73° (1998) 3.51" 2.7"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 31° 47° 15° (2005) 63° (1998) 0.11" 0"
Dec 2 31° 47° 17° (2006) 71° (1950) 0.12" 0.1"
Dec 3 31° 47° 16° (1989) 67° (1995) 0.12" 0"
Dec 4 30° 46° 9° (2006) 71° (1998) 0.12" 0"
Dec 5 30° 46° 11° (1991) 71° (1998) 0.12" 0.1"
Dec 6 29° 45° 5° (2002) 70° (2001) 0.12" 0"
Dec 7 29° 45° 2° (1977) 73° (1998) 0.12" 0.1"
Dec 8 29° 44° 4° (2006) 64° (1980) 0.12" 0"
Dec 9 28° 44° 0° (1995) 64° (1991) 0.12" 0.1"
Dec 10 28° 44° 2° (1977) 60° (1999) 0.13" 0.1"
Dec 11 28° 43° 2° (1977) 65° (1949) 0.11" 0.1"
Dec 12 28° 43° 9° (1977) 68° (1948) 0.12" 0"
Dec 13 27° 42° 8° (2010) 69° (1948) 0.1" 0.1"
Dec 14 27° 42° 1° (2010) 64° (1948) 0.11" 0.1"
Dec 15 27° 42° 5° (2010) 71° (1995) 0.11" 0.1"
Dec 16 27° 41° -9° (1989) 68° (1984) 0.11" 0.1"
Dec 17 26° 41° -7° (1989) 65° (1984) 0.12" 0.2"
Dec 18 26° 41° -1° (1989) 68° (1984) 0.11" 0.1"
Dec 19 26° 41° -3° (1983) 59° (2008) 0.1" 0.1"
Dec 20 26° 40° -1° (1983) 68° (1949) 0.11" 0.1"
Dec 21 26° 40° -4° (1989) 68° (1949) 0.11" 0.1"
Dec 22 25° 40° -17° (1989) 65° (1949) 0.11" 0.1"
Dec 23 25° 40° -16° (1989) 63° (1994) 0.12" 0.1"
Dec 24 25° 40° -12° (1989) 61° (1988) 0.12" 0.1"
Dec 25 25° 39° -9° (1983) 59° (1979) 0.11" 0.1"
Dec 26 25° 39° -6° (1983) 53° (2007) 0.12" 0.1"
Dec 27 25° 39° 6° (1950) 64° (2008) 0.11" 0.2"
Dec 28 25° 39° 4° (2000) 73° (2008) 0.1" 0.1"
Dec 29 25° 39° 3° (1983) 70° (1984) 0.11" 0.1"
Dec 30 24° 39° -6° (1983) 69° (1984) 0.1" 0.1"
Dec 31 24° 39° -1° (1983) 65° (2004) 0.1" 0.1"
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