Illinois, Climate Division 5 July 2019 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
76.5
74.4
2.1
103
27
2014
1936
2018
2012
top-third
2
73.4
72.4
1.0
92
38
1958
1934
2015
2018
top-third
1930,1940,2021
3
69.5
68.6
0.9
90
40
1924
1934
2017
2018
top-third
1931,1943,1975,2020
4
64.9
63.9
1.0
87
43
1907
1991
2014
2018
top-third
1931,1962,2002,2022
5
59.0
58.8
0.2
60
70
1960
2012
2014
2018
normal
1908,1913,1945,1957,1968,2009
6
53.9
53.6
0.3
70
60
1904,1947
2012
2015
2018
normal
1939,1941,1948,1956,2007
7
49.5
49.3
0.2
69
61
1912
2012
2015
2018
normal
1908,1957,1959
8
47.5
46.7
0.8
79
50
1904
2012
2018
2017
normal
1957,1985
9
46.1
45.9
0.2
68
61
1904
2012
2015
2018
normal
1898,1935,1975,1993
10
46.8
46.7
0.1
65
64
1904
2012
2015
2018
normal
1975
11
48.9
48.3
0.6
79
50
1904
2012
2015
2018
normal
1973,1990,2013
12
51.0
50.3
0.7
80
49
1904
2012
2015
2018
normal
1964,1981
18
52.3
51.4
0.9
92
37
1918
2012,2017
2015
2018
top-third
1933,1986,2008
24
51.1
50.3
0.8
92
36
1905
2017
2015
2018
top-third
1921,1950,1974
36
52.3
50.3
2.0
121
6
1904,1905,1906
2018
2016
2018
top-tenth
1933,1934,2006
48
52.7
50.3
2.4
125
1
1905
2019
2018
2019
highest
60
52.0
50.3
1.7
121
4
1906
2020
2018
2008
top-tenth
2006,2008