Heathsville, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 23° 38° -21° (1994) 75° (1943) 3.09" 4.1"
February 26° 43° -18° (1982) 77° (1972) 2.65" 3.2"
March 35° 55° -12° (1960) 88° (1929) 3.66" 1.2"
April 44° 66° 18° (2001) 94° (1989) 4.36" 0.1"
May 54° 76° 28° (1903) 98° (1987) 5.04" 0"
June 63° 84° 34° (1988) 108° (1954) 4.09" 0"
July 66° 87° 38° (1917) 114° (1954) 3.9" 0"
August 64° 86° 41° (1946) 108° (1930) 3.5" 0"
September 55° 80° 26° (1942) 107° (1954) 3.38" 0"
October 45° 68° 16° (1952) 95° (1953) 3.47" 0.1"
November 36° 54° 0° (1929) 84° (1950) 3.91" 0.4"
December 26° 41° -23° (1989) 74° (1998) 3.29" 4.3"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 49° 71° 28° (1903) 92° (1951) 0.17" 0"
May 2 50° 72° 32° (1978) 91° (1959) 0.18" 0"
May 3 50° 72° 33° (1967) 92° (1928) 0.17" 0"
May 4 50° 72° 30° (1940) 93° (1959) 0.17" 0"
May 5 51° 73° 34° (1907) 94° (1952) 0.17" 0"
May 6 51° 73° 31° (1944) 94° (1949) 0.17" 0"
May 7 51° 73° 31° (1944) 90° (1986) 0.16" 0"
May 8 52° 73° 32° (1928) 94° (1986) 0.17" 0"
May 9 52° 74° 34° (1923) 92° (1963) 0.16" 0"
May 10 52° 74° 29° (1966) 92° (1987) 0.17" 0"
May 11 53° 74° 32° (1945) 90° (2005) 0.17" 0"
May 12 53° 75° 34° (1909) 92° (1902) 0.18" 0"
May 13 53° 75° 33° (1960) 94° (1987) 0.18" 0"
May 14 54° 75° 35° (1910) 92° (1962) 0.17" 0"
May 15 54° 75° 37° (1920) 93° (1988) 0.18" 0"
May 16 54° 76° 32° (1997) 95° (2001) 0.16" 0"
May 17 55° 76° 38° (1940) 97° (1962) 0.16" 0"
May 18 55° 76° 37° (1941) 94° (1962) 0.16" 0"
May 19 55° 77° 36° (1925) 94° (1951) 0.16" 0"
May 20 56° 77° 36° (1956) 98° (1987) 0.16" 0"
May 21 56° 77° 36° (1954) 95° (1902) 0.16" 0"
May 22 56° 77° 35° (1997) 95° (1941) 0.16" 0"
May 23 57° 78° 36° (1985) 92° (1906) 0.15" 0"
May 24 57° 78° 37° (1929) 93° (1921) 0.16" 0"
May 25 57° 78° 30° (1925) 96° (1926) 0.15" 0"
May 26 58° 79° 34° (1925) 97° (1911) 0.16" 0"
May 27 58° 79° 33° (1961) 98° (1911) 0.15" 0"
May 28 58° 79° 39° (1902) 98° (1911) 0.14" 0"
May 29 59° 80° 38° (1932) 97° (1913) 0.15" 0"
May 30 59° 80° 36° (1924) 96° (1913) 0.15" 0"
May 31 59° 80° 38° (1966) 98° (1934) 0.14" 0"
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