Heman, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 17° 35° -23° (1977) 73° (1909) 2.05" 7.1"
February 22° 41° -25° (1905) 76° (1972) 1.95" 6.4"
March 32° 53° -10° (1978) 89° (1929) 3.2" 3.1"
April 42° 65° 15° (1982) 93° (1987) 3.58" 0.4"
May 52° 76° 26° (1903) 101° (1934) 4.47" 0"
June 61° 85° 38° (1917) 105° (1954) 3.9" 0"
July 65° 88° 45° (1930) 113° (1954) 4.54" 0"
August 63° 86° 35° (1986) 106° (1983) 4.14" 0"
September 55° 80° 27° (1928) 104° (1954) 2.98" 0"
October 44° 68° 12° (1925) 96° (1953) 2.74" 0"
November 34° 52° -3° (1929) 83° (1933) 3.32" 1.3"
December 23° 39° -22° (1983) 72° (1970) 2.87" 5.8"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 57° 81° 39° (1983) 104° (1934) 0.14" NA
Jun 2 57° 81° 40° (1956) 104° (1934) 0.13" NA
Jun 3 57° 82° 39° (1929) 100° (1934) 0.13" NA
Jun 4 58° 82° 40° (1945) 99° (1911) 0.13" NA
Jun 5 58° 82° 41° (1990) 100° (1925) 0.13" NA
Jun 6 58° 82° 45° (1907) 101° (1934) 0.13" NA
Jun 7 59° 83° 41° (1910) 99° (1933) 0.13" NA
Jun 8 59° 83° 40° (1915) 97° (1934) 0.13" NA
Jun 9 59° 83° 40° (1913) 98° (1914) 0.13" NA
Jun 10 60° 84° 39° (1988) 100° (1911) 0.13" NA
Jun 11 60° 84° 40° (1903) 102° (1933) 0.13" NA
Jun 12 60° 84° 38° (1903) 99° (1914) 0.13" NA
Jun 13 60° 84° 40° (1903) 98° (1921) 0.13" NA
Jun 14 61° 84° 44° (1933) 103° (1987) 0.13" NA
Jun 15 61° 85° 45° (1917) 100° (1987) 0.13" NA
Jun 16 61° 85° 38° (1917) 98° (1922) 0.12" NA
Jun 17 61° 85° 42° (1980) 102° (1918) 0.13" NA
Jun 18 61° 85° 46° (1980) 102° (1913) 0.13" NA
Jun 19 62° 85° 49° (1985) 103° (1953) 0.13" NA
Jun 20 62° 86° 40° (1980) 105° (1953) 0.13" NA
Jun 21 62° 86° 41° (1992) 100° (1933) 0.13" NA
Jun 22 62° 86° 41° (1902) 99° (1914) 0.13" NA
Jun 23 62° 86° 43° (1972) 103° (1923) 0.13" NA
Jun 24 63° 86° 45° (1972) 101° (1922) 0.13" NA
Jun 25 63° 86° 46° (1979) 101° (1954) 0.13" NA
Jun 26 63° 87° 46° (1979) 105° (1954) 0.13" NA
Jun 27 63° 87° 46° (1905) 105° (1934) 0.13" NA
Jun 28 63° 87° 47° (1987) 105° (1934) 0.13" NA
Jun 29 63° 87° 43° (1923) 104° (1934) 0.13" NA
Jun 30 63° 87° 47° (1943) 105° (1931) 0.13" NA
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