Harmon, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 12° 29° -27° (1999) 65° (2004) 1.57" 11.2"
February 16° 34° -27° (1905) 71° (2000) 1.65" 5.8"
March 27° 46° -13° (2002) 87° (1986) 2.47" 4.1"
April 38° 60° 8° (1982) 93° (1986) 3.5" 0.7"
May 49° 71° 24° (2005) 105° (1934) 4.41" 0"
June 59° 79° 34° (1945) 106° (1934) 4.9" 0"
July 63° 83° 43° (1904) 110° (1936) 4.14" 0"
August 61° 81° 37° (1934) 103° (1988) 4.5" 0"
September 51° 75° 22° (1942) 102° (1939) 3.55" 0"
October 40° 62° 7° (1925) 93° (1963) 2.9" 0.1"
November 29° 47° -8° (1977) 81° (1933) 2.69" 1.4"
December 17° 33° -25° (1983) 68° (1998) 2.19" 6.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Apr 1 33° 54° 14° (1924) 85° (1986) 0.1" 0.1"
Apr 2 33° 54° 18° (1926) 83° (2003) 0.11" 0"
Apr 3 33° 55° 16° (1954) 80° (1921) 0.1" 0"
Apr 4 34° 55° 17° (1936) 82° (1929) 0.11" 0.1"
Apr 5 34° 56° 11° (1975) 82° (1929) 0.1" 0"
Apr 6 34° 56° 11° (1982) 83° (1929) 0.11" 0.1"
Apr 7 35° 57° 8° (1982) 84° (1991) 0.11" 0"
Apr 8 35° 57° 13° (1982) 83° (1931) 0.11" 0"
Apr 9 35° 58° 15° (1997) 83° (1931) 0.12" 0.1"
Apr 10 36° 58° 19° (1909) 92° (1930) 0.11" 0"
Apr 11 36° 59° 22° (1973) 91° (1930) 0.12" 0"
Apr 12 37° 59° 18° (1939) 89° (1930) 0.11" 0"
Apr 13 37° 59° 18° (1939) 83° (1977) 0.12" 0.1"
Apr 14 37° 60° 16° (1904) 85° (2006) 0.12" 0"
Apr 15 38° 60° 19° (1928) 86° (2003) 0.11" 0"
Apr 16 38° 61° 18° (1949) 88° (2002) 0.12" 0"
Apr 17 38° 61° 15° (1904) 88° (1977) 0.12" 0.1"
Apr 18 39° 61° 23° (1926) 87° (1977) 0.12" 0"
Apr 19 39° 62° 19° (1983) 91° (2002) 0.12" 0"
Apr 20 39° 62° 16° (1904) 86° (1985) 0.12" 0"
Apr 21 40° 63° 13° (1904) 90° (1987) 0.12" 0"
Apr 22 40° 63° 22° (1986) 88° (1985) 0.12" 0"
Apr 23 41° 63° 23° (1910) 90° (1980) 0.12" 0.1"
Apr 24 41° 64° 18° (1910) 87° (1915) 0.12" 0"
Apr 25 41° 64° 21° (1934) 86° (1915) 0.12" 0"
Apr 26 42° 64° 26° (1907) 93° (1986) 0.13" 0"
Apr 27 42° 65° 25° (1946) 90° (1986) 0.12" 0"
Apr 28 42° 65° 26° (1950) 89° (1952) 0.13" 0"
Apr 29 43° 65° 27° (1958) 91° (1970) 0.13" 0"
Apr 30 43° 66° 28° (1907) 91° (1942) 0.13" 0"
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