Illinois, Climate Division 2 September 1898 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
66.5
63.7
2.8
103
27
1918
1897
1896
1897
top-third
2004
2
68.7
67.4
1.3
90
40
1902
1947
1896
1897
top-third
1919,1961
3
70.4
69.3
1.1
90
40
1924
1936
1896
1897
top-third
1934,1937,1948
4
70.5
69.2
1.3
96
34
1915
2005
1897
1895
top-third
5
68.1
67.1
1.0
91
39
1924
1921,1988
1897
1896
top-third
1899,1930,1970,2011,2019,2023
6
64.5
63.9
0.6
74
56
1907
1921
1897
1896
normal
1913,1953
7
61.0
59.9
1.1
93
37
1924
2012
1897
1898
top-third
1946
8
56.5
55.5
1.0
89
41
1904,1917
2012
1897
1896
top-third
1896,1952,2001,2004
9
53.0
51.7
1.3
92
38
1904,1912
2012
1897
1896
top-third
1896
10
49.9
49.1
0.8
82
47
1904
2012
1897
1896
normal
1949,1952,2019
11
48.7
48.1
0.6
83
46
1904
2012
1897
1896
normal
1908,1911,1946,1964,1981,1985
12
49.4
48.5
0.9
91
38
1904
2012
1897
1898
top-third
1925,1934
18
54.3
53.6
0.7
86
43
1904
2012
1897
1896
top-third
1896,1901,1956,1989,2004
24
48.9
48.5
0.4
80
48
1918
2017
1897
1898
normal
1923,1940,1973,2004
36
48.8
48.4
0.4
78
49
1979
2000
1898
1898
normal
1944,1974,1975,1995
48
-99
48.4
-99
-99
-99
1905,1918
2001,2002,2019
normal
60
-99
48.4
-99
-99
-99
1905,1906
2002
normal