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
Mar 1 21° 39° -11° (1962) 65° (2000) 0.07" 0.2"
Mar 2 22° 39° -8° (1913) 68° (1974) 0.08" 0.2"
Mar 3 22° 40° -6° (1913) 74° (1974) 0.07" 0.2"
Mar 4 23° 40° -13° (2002) 74° (1983) 0.07" 0.2"
Mar 5 23° 41° -11° (2002) 70° (1921) 0.08" 0.2"
Mar 6 23° 41° -8° (1960) 73° (1983) 0.07" 0.1"
Mar 7 24° 42° -5° (1943) 71° (2000) 0.07" 0.2"
Mar 8 24° 42° -11° (1943) 78° (2000) 0.08" 0.2"
Mar 9 25° 43° -2° (1996) 76° (2000) 0.07" 0.2"
Mar 10 25° 43° -1° (1984) 72° (1955) 0.08" 0.1"
Mar 11 25° 44° 0° (1943) 72° (1972) 0.07" 0.2"
Mar 12 26° 44° -3° (1948) 71° (1990) 0.08" 0.2"
Mar 13 26° 45° 5° (1912) 78° (1990) 0.08" 0.1"
Mar 14 26° 45° 5° (1960) 74° (2007) 0.07" 0.2"
Mar 15 27° 46° 5° (1979) 73° (1995) 0.08" 0.1"
Mar 16 27° 46° 5° (1923) 80° (1945) 0.08" 0.2"
Mar 17 28° 47° 0° (1941) 74° (1945) 0.08" 0.1"
Mar 18 28° 47° 0° (1941) 75° (2009) 0.08" 0.1"
Mar 19 28° 48° -9° (1923) 82° (1921) 0.08" 0.2"
Mar 20 29° 48° 5° (1965) 78° (1921) 0.08" 0.1"
Mar 21 29° 49° 8° (1951) 79° (1938) 0.08" 0.1"
Mar 22 29° 49° 4° (1912) 84° (1907) 0.08" 0.1"
Mar 23 30° 50° 3° (1940) 82° (1939) 0.09" 0.1"
Mar 24 30° 50° 2° (1974) 81° (1939) 0.07" 0"
Mar 25 30° 51° 6° (1940) 85° (1910) 0.08" 0.1"
Mar 26 31° 51° 9° (1955) 80° (1910) 0.09" 0.1"
Mar 27 31° 52° 8° (1965) 81° (1945) 0.09" 0.1"
Mar 28 31° 52° 13° (1964) 81° (1910) 0.09" 0"
Mar 29 32° 53° 12° (1969) 82° (1910) 0.09" 0.1"
Mar 30 32° 53° 9° (1969) 87° (1986) 0.09" 0"
Mar 31 32° 53° 8° (1923) 80° (1986) 0.1" 0.1"
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