Illinois July 2018 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
75.0
75.6
-0.6
52
78
2009,2014
1936
2015
2017
normal
1898,1937,1970
2
75.0
73.5
1.5
100
30
1915,1958
1934
2017
2016
top-third
1932
3
73.5
69.7
3.8
126
4
1924
1934
2017
2012
top-tenth
4
66.4
65.2
1.2
100
30
1907
1934
2016
2017
top-third
1901,1922,1932,1959,2016
5
60.9
60.1
0.8
83
47
1960
2012
2015
2017
normal
1910,1919,1976
6
56.1
55.0
1.1
97
33
1947
2012
2015
2017
top-third
1949,1957,1964
7
51.5
50.7
0.8
83
47
1912
2012
2015
2017
normal
1898,1942,1981
8
48.8
48.1
0.7
79
50
1904
2012
2015
2017
normal
1925,1990
9
48.0
47.2
0.8
85
44
1904
2012
2015
2017
normal
1911,1925,1957
10
49.0
48.0
1.0
90
39
1904
2012
2015
2017
top-third
1933,1974
11
50.8
49.7
1.1
97
32
1904
2012
2015
2017
top-third
1964,2007,2010
12
52.5
51.6
0.9
90
39
1904
2012
2015
2017
top-third
1938,1964,2008,2010
18
54.5
52.7
1.8
112
17
1918
2012
2015
2017
top-third
1988
24
54.0
51.6
2.4
125
3
1905
2017
2016
2017
top-tenth
1932,1999,2000,2013
36
54.3
51.6
2.7
126
1
1979
2018
2017
2018
highest
48
53.5
51.6
1.9
124
2
1905,1980
2019
2017
2018
top-tenth
60
52.7
51.6
1.1
108
17
1906
2020
2017
2016
top-third
1936,1956,1991,2001,2004,2010,2016