Quincy, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 16° 34° -21° (1979) 70° (2004) 1.36" NA
February 21° 40° -17° (1979) 74° (1996) 1.74" NA
March 30° 52° -12° (1978) 85° (1986) 2.93" NA
April 41° 65° 17° (1982) 92° (1986) 3.48" NA
May 51° 75° 33° (2005) 92° (2006) 4.61" NA
June 61° 84° 45° (1993) 102° (1988) 3.26" NA
July 66° 88° 52° (1983) 105° (2005) 3.89" NA
August 63° 86° 44° (1974) 105° (2003) 3.09" NA
September 55° 78° 32° (1983) 98° (2000) 3.45" NA
October 43° 66° 22° (1981) 93° (1997) 2.5" NA
November 33° 51° 0° (1953) 83° (1987) 3.1" NA
December 21° 38° -18° (1983) 71° (1984) 2.22" NA
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 46° 70° 36° (1978) 86° (1992) 0.14" NA
May 2 46° 70° 35° (1978) 85° (1992) 0.14" NA
May 3 47° 71° 36° (2005) 82° (2001) 0.15" NA
May 4 47° 71° 33° (2005) 84° (2001) 0.15" NA
May 5 48° 71° 33° (2005) 86° (1982) 0.15" NA
May 6 48° 72° 35° (1989) 87° (1982) 0.15" NA
May 7 48° 72° 34° (1989) 83° (1983) 0.15" NA
May 8 49° 72° 34° (1989) 85° (1979) 0.15" NA
May 9 49° 72° 35° (1980) 90° (1979) 0.15" NA
May 10 49° 73° 34° (1980) 88° (2003) 0.15" NA
May 11 50° 73° 40° (1981) 91° (2005) 0.16" NA
May 12 50° 73° 40° (1981) 88° (2000) 0.16" NA
May 13 50° 74° 40° (1989) 85° (1988) 0.16" NA
May 14 51° 74° 41° (1980) 88° (1991) 0.16" NA
May 15 51° 74° 39° (1981) 92° (1988) 0.16" NA
May 16 51° 75° 37° (1997) 89° (1977) 0.16" NA
May 17 52° 75° 38° (1997) 88° (1992) 0.16" NA
May 18 52° 75° 41° (1985) 92° (1996) 0.15" NA
May 19 52° 76° 42° (2002) 91° (1996) 0.15" NA
May 20 53° 76° 42° (1981) 91° (1996) 0.15" NA
May 21 53° 76° 41° (2002) 87° (1988) 0.15" NA
May 22 53° 77° 41° (2002) 87° (1988) 0.15" NA
May 23 54° 77° 46° (1979) 84° (1977) 0.15" NA
May 24 54° 77° 44° (1979) 85° (1977) 0.15" NA
May 25 54° 78° 43° (1992) 87° (1978) 0.14" NA
May 26 55° 78° 43° (1979) 89° (1977) 0.14" NA
May 27 55° 78° 39° (1992) 92° (1977) 0.14" NA
May 28 55° 78° 40° (1992) 92° (2006) 0.14" NA
May 29 56° 79° 41° (1992) 92° (2006) 0.14" NA
May 30 56° 79° 44° (1984) 92° (2006) 0.13" NA
May 31 56° 80° 44° (1984) 89° (1991) 0.13" NA
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