Illinois, Climate Division 8 August 1989 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
75.6
76.0
-0.4
51
79
1915
1936
1986
1988
normal
1898,1948
2
76.3
77.0
-0.7
42
88
1967
1936
1985
1988
bottom-third
1958,1981
3
74.9
75.9
-1.0
31
99
1915,1927
1936
1985
1988
bottom-third
1946,1965,2003
4
71.7
73.2
-1.5
18
112
1967
1936
1976
1988
bottom-third
5
68.6
69.6
-1.0
25
105
1907
2010
1982
1988
bottom-third
1929
6
64.6
65.5
-0.9
27
103
1904
2012
1984
1988
bottom-third
1897,1923,1978
7
59.6
61.1
-1.5
15
115
1904
2012
1979
1988
bottom-third
1907,1915,2014
8
57.1
57.3
-0.2
52
78
1912
2012
1985
1988
normal
1927,1937,1945,1962,1967
9
54.8
54.8
0.0
58
71
1904
2012
1985
1988
normal
1956,1975,2009
10
53.9
53.8
0.1
57
72
1904
2012
1985
1988
normal
1898,1923,1964,1965,1966,1967,1975
11
53.7
54.1
-0.4
39
90
1904
2012
1984
1988
bottom-third
1928,1973,2015
12
55.0
55.4
-0.4
43
86
1904
2012
1984
1988
bottom-third
1907,2001
18
58.9
58.7
0.2
65
64
1904
2012
1985
1988
normal
24
55.4
55.4
0.0
57
71
1979
2017
1985
1988
normal
1937,1948,1981,1996
36
55.9
55.4
0.5
85
42
1979
2018
1986
1988
top-third
1941,1944,2010,2016
48
56.0
55.3
0.7
88
38
1980
2019
1987
1988
top-third
1939,1941,1991,1992,1993,2015
60
55.9
55.3
0.6
82
43
1906
2020
1988
1958
normal
1941,1945,1954,1990,1995,1999