Allerton, Illinois
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 16° 32° -25° (1999) 70° (1909) 1.9" 8.1"
February 21° 38° -25° (1905) 72° (2000) 2.01" 7"
March 30° 49° -5° (1906) 85° (1910) 3.21" 4.2"
April 40° 62° 16° (1982) 91° (1986) 3.65" 0.8"
May 51° 74° 26° (1903) 97° (1934) 4.8" 0"
June 60° 83° 37° (1945) 103° (1988) 4.21" 0"
July 64° 85° 41° (1904) 109° (1954) 4.67" 0"
August 62° 83° 39° (1915) 102° (1988) 4.37" 0"
September 54° 78° 29° (1942) 101° (1954) 3.22" 0"
October 43° 65° 13° (1925) 93° (1954) 2.81" 0.1"
November 33° 50° -5° (1950) 80° (1950) 3.45" 2"
December 22° 37° -20° (1983) 71° (1998) 2.76" 5.9"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Aug 1 64° 85° 52° (1918) 97° (1916) 0.15" NA
Aug 2 64° 85° 49° (1920) 100° (1991) 0.15" NA
Aug 3 64° 85° 50° (1912) 101° (1964) 0.15" NA
Aug 4 64° 84° 47° (1912) 99° (1947) 0.15" NA
Aug 5 64° 84° 48° (1912) 101° (1918) 0.15" NA
Aug 6 64° 84° 49° (1948) 100° (1918) 0.15" NA
Aug 7 64° 84° 51° (2004) 98° (1930) 0.15" NA
Aug 8 64° 84° 47° (1904) 100° (1913) 0.15" NA
Aug 9 64° 84° 48° (1989) 100° (1930) 0.15" NA
Aug 10 64° 84° 52° (1919) 97° (1911) 0.15" NA
Aug 11 63° 84° 49° (1965) 99° (1941) 0.15" NA
Aug 12 63° 84° 48° (1967) 97° (1918) 0.14" NA
Aug 13 63° 84° 51° (1941) 97° (1936) 0.14" NA
Aug 14 63° 84° 48° (1924) 96° (1940) 0.14" NA
Aug 15 63° 83° 48° (1979) 99° (1988) 0.14" NA
Aug 16 63° 83° 51° (1927) 101° (1988) 0.14" NA
Aug 17 63° 83° 50° (1963) 102° (1988) 0.14" NA
Aug 18 62° 83° 46° (1963) 101° (1936) 0.14" NA
Aug 19 62° 83° 51° (1932) 97° (1916) 0.14" NA
Aug 20 62° 83° 48° (1950) 99° (1983) 0.14" NA
Aug 21 62° 83° 44° (1950) 99° (1936) 0.14" NA
Aug 22 62° 83° 47° (1923) 99° (1936) 0.14" NA
Aug 23 61° 82° 45° (1923) 98° (1947) 0.14" NA
Aug 24 61° 82° 47° (1920) 96° (1936) 0.13" NA
Aug 25 61° 82° 46° (1942) 96° (1948) 0.13" NA
Aug 26 61° 82° 46° (1910) 98° (1936) 0.13" NA
Aug 27 60° 82° 46° (1904) 96° (1953) 0.13" NA
Aug 28 60° 82° 44° (1986) 97° (1953) 0.13" NA
Aug 29 60° 82° 40° (1986) 98° (1953) 0.13" NA
Aug 30 60° 81° 41° (1986) 97° (1953) 0.13" NA
Aug 31 59° 81° 39° (1915) 98° (1953) 0.13" NA
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