Summerville, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 19° 37° -25° (1977) 74° (1950) 2.17" 3.9"
February 23° 42° -22° (1982) 80° (1972) 2.34" 3.4"
March 32° 53° -11° (1960) 86° (1985) 3.24" 1.6"
April 42° 65° 18° (1961) 92° (1951) 3.88" 0.1"
May 53° 75° 28° (1976) 96° (1953) 4.61" 0"
June 62° 83° 37° (1972) 104° (1954) 3.84" 0"
July 66° 87° 43° (1962) 112° (1954) 3.62" 0"
August 63° 86° 38° (1986) 105° (1964) 3.17" 0"
September 54° 79° 27° (1983) 102° (1954) 3.41" 0"
October 43° 67° 17° (1981) 93° (1963) 3.21" 0.1"
November 34° 54° -2° (1991) 84° (1950) 4.08" 0.6"
December 22° 40° -19° (1989) 74° (1948) 3.12" 3.6"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jun 1 58° 79° 37° (1972) 94° (1951) 0.14" 0"
Jun 2 58° 79° 46° (1966) 94° (1951) 0.14" 0"
Jun 3 58° 80° 40° (1969) 92° (1948) 0.14" 0"
Jun 4 59° 80° 46° (1961) 94° (1948) 0.13" 0"
Jun 5 59° 80° 43° (1993) 96° (1948) 0.14" 0"
Jun 6 59° 81° 45° (1998) 98° (1977) 0.14" 0"
Jun 7 60° 81° 44° (1983) 94° (1963) 0.14" 0"
Jun 8 60° 81° 47° (1960) 95° (1953) 0.14" 0"
Jun 9 60° 82° 43° (1978) 96° (1953) 0.14" 0"
Jun 10 61° 82° 45° (1988) 97° (1953) 0.13" 0"
Jun 11 61° 82° 43° (1972) 96° (1953) 0.12" 0"
Jun 12 61° 82° 48° (1980) 98° (1952) 0.13" 0"
Jun 13 62° 83° 47° (1962) 99° (1952) 0.13" 0"
Jun 14 62° 83° 45° (1955) 99° (1952) 0.13" 0"
Jun 15 62° 83° 49° (1959) 101° (1952) 0.13" 0"
Jun 16 62° 84° 42° (1989) 102° (1952) 0.13" 0"
Jun 17 63° 84° 43° (1961) 101° (1952) 0.13" 0"
Jun 18 63° 84° 45° (1999) 100° (1953) 0.12" 0"
Jun 19 63° 84° 48° (1965) 103° (1953) 0.13" 0"
Jun 20 63° 85° 44° (1980) 103° (1953) 0.13" 0"
Jun 21 64° 85° 42° (1961) 102° (1953) 0.12" 0"
Jun 22 64° 85° 44° (1992) 97° (1953) 0.12" 0"
Jun 23 64° 85° 46° (1972) 97° (1952) 0.13" 0"
Jun 24 64° 86° 45° (1972) 100° (1953) 0.12" 0"
Jun 25 65° 86° 47° (1974) 102° (1954) 0.11" 0"
Jun 26 65° 86° 48° (2004) 104° (1954) 0.12" 0"
Jun 27 65° 86° 50° (1968) 102° (1954) 0.11" 0"
Jun 28 65° 86° 45° (1968) 101° (1952) 0.12" 0"
Jun 29 65° 86° 51° (2004) 102° (1952) 0.11" 0"
Jun 30 65° 86° 52° (1980) 100° (1952) 0.12" 0"
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