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
Jul 1 63° 85° 49° (1937) 99° (1933) 0.14" NA
Jul 2 63° 85° 41° (1904) 102° (1925) 0.15" NA
Jul 3 64° 85° 48° (1907) 99° (1911) 0.15" NA
Jul 4 64° 85° 48° (1940) 102° (1911) 0.15" NA
Jul 5 64° 85° 48° (1972) 102° (1936) 0.15" NA
Jul 6 64° 85° 50° (1915) 105° (1936) 0.15" NA
Jul 7 64° 85° 52° (1950) 104° (1936) 0.15" NA
Jul 8 64° 85° 50° (1908) 104° (1936) 0.15" NA
Jul 9 64° 85° 51° (1918) 99° (1936) 0.15" NA
Jul 10 64° 85° 50° (1963) 104° (1936) 0.15" NA
Jul 11 64° 85° 50° (1945) 105° (1936) 0.15" NA
Jul 12 64° 86° 52° (1918) 106° (1936) 0.15" NA
Jul 13 64° 86° 47° (1975) 105° (1936) 0.15" NA
Jul 14 64° 86° 48° (1975) 109° (1954) 0.15" NA
Jul 15 65° 86° 50° (1930) 107° (1936) 0.15" NA
Jul 16 65° 86° 51° (1945) 98° (1913) 0.15" NA
Jul 17 65° 86° 51° (1940) 100° (1936) 0.15" NA
Jul 18 65° 85° 50° (1924) 103° (1954) 0.15" NA
Jul 19 65° 85° 50° (1909) 100° (1930) 0.15" NA
Jul 20 65° 85° 50° (1929) 101° (1954) 0.15" NA
Jul 21 65° 85° 49° (1944) 102° (1934) 0.15" NA
Jul 22 65° 85° 48° (1947) 100° (1934) 0.16" NA
Jul 23 65° 85° 48° (1947) 103° (1934) 0.16" NA
Jul 24 65° 85° 50° (1909) 103° (1934) 0.16" NA
Jul 25 65° 85° 48° (1911) 104° (1934) 0.15" NA
Jul 26 65° 85° 47° (1911) 101° (1930) 0.15" NA
Jul 27 65° 85° 51° (1907) 103° (1930) 0.15" NA
Jul 28 65° 85° 54° (1911) 105° (1930) 0.15" NA
Jul 29 64° 85° 52° (1928) 101° (1916) 0.15" NA
Jul 30 64° 85° 53° (1936) 103° (1913) 0.15" NA
Jul 31 64° 85° 51° (1918) 100° (1916) 0.15" NA
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