Ancona, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 13° 30° -25° (1985) 69° (1909) 1.75" 7.8"
February 18° 36° -28° (1905) 74° (1996) 1.83" 5.7"
March 29° 48° -14° (1943) 88° (1986) 3.23" 3.2"
April 38° 62° 7° (1982) 93° (1986) 3.53" 0.7"
May 49° 73° 24° (1966) 103° (1934) 4.2" 0"
June 58° 83° 36° (1993) 105° (1934) 3.71" 0"
July 62° 86° 42° (1904) 111° (1936) 3.76" 0"
August 60° 84° 38° (1986) 105° (1936) 3.41" 0"
September 52° 78° 24° (1942) 104° (1913) 3.34" 0"
October 41° 66° 10° (1925) 93° (1963) 2.81" 0.1"
November 30° 49° -9° (1930) 82° (1950) 3.28" 1.3"
December 19° 35° -24° (1924) 70° (1998) 2.39" 6.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Dec 1 24° 41° 7° (2002) 64° (1970) 0.1" NA
Dec 2 24° 41° -2° (1942) 68° (1982) 0.1" NA
Dec 3 23° 40° -6° (1929) 70° (1982) 0.09" NA
Dec 4 23° 40° -2° (1991) 68° (1998) 0.09" NA
Dec 5 23° 39° -2° (1991) 70° (1998) 0.09" NA
Dec 6 22° 39° -5° (1977) 67° (2001) 0.09" NA
Dec 7 22° 38° -8° (1977) 67° (1916) 0.09" NA
Dec 8 21° 38° -6° (1902) 65° (1946) 0.09" NA
Dec 9 21° 38° -15° (1958) 68° (1991) 0.09" NA
Dec 10 21° 37° -13° (1958) 63° (1918) 0.08" NA
Dec 11 20° 37° -13° (1917) 63° (1949) 0.08" NA
Dec 12 20° 36° -10° (1958) 59° (1949) 0.08" NA
Dec 13 20° 36° -16° (1903) 60° (1991) 0.08" NA
Dec 14 19° 36° -10° (1901) 56° (1920) 0.08" NA
Dec 15 19° 35° -14° (1901) 62° (1971) 0.08" NA
Dec 16 19° 35° -17° (1932) 59° (1918) 0.08" NA
Dec 17 18° 35° -12° (1989) 61° (1984) 0.07" NA
Dec 18 18° 34° -11° (1985) 60° (1939) 0.07" NA
Dec 19 18° 34° -22° (1983) 57° (1918) 0.07" NA
Dec 20 17° 34° -18° (1983) 61° (1949) 0.07" NA
Dec 21 17° 34° -20° (1963) 60° (1967) 0.07" NA
Dec 22 17° 33° -20° (1989) 57° (1984) 0.07" NA
Dec 23 16° 33° -21° (1989) 60° (1933) 0.07" NA
Dec 24 16° 33° -21° (1983) 62° (1982) 0.07" NA
Dec 25 16° 32° -21° (1983) 61° (1982) 0.07" NA
Dec 26 16° 32° -21° (1914) 59° (1982) 0.07" NA
Dec 27 15° 32° -10° (1935) 60° (1907) 0.06" NA
Dec 28 15° 32° -24° (1924) 61° (1982) 0.06" NA
Dec 29 15° 31° -14° (1917) 68° (1984) 0.06" NA
Dec 30 14° 31° -16° (1983) 60° (1936) 0.06" NA
Dec 31 14° 31° -15° (1976) 61° (2002) 0.06" NA
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