Illinois, Climate Division 2 May 2007 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
64.2
59.0
5.2
118
12
1907
1977
2006
1998
top-tenth
1959
2
55.6
53.4
2.2
104
26
1907
1977
2005
2006
top-third
2023
3
51.2
47.5
3.7
121
9
1926
2012
2006
2004
top-tenth
2004
4
42.6
41.9
0.7
83
47
1904
2012
2003
2006
normal
1959,2002
5
39.5
37.7
1.8
100
30
1912
2012
2003
2006
top-third
1933,1976
6
38.3
35.8
2.5
110
19
1904
2012
2005
2006
top-third
7
38.9
36.1
2.8
113
16
1904
2012
2005
2006
top-third
2005
8
40.1
38.1
2.0
107
22
1904
2012
2003
2006
top-third
2010
9
42.5
41.0
1.5
100
29
1904
2012
2003
2006
top-third
10
45.5
44.0
1.5
105
24
1904
2012
2003
2006
top-third
1955,1983
11
48.2
46.6
1.6
108
21
1904
2012
2005
2006
top-third
1922,1939
12
49.9
48.5
1.4
106
23
1904
2012
2005
2006
top-third
2004,2013
18
46.3
44.2
2.1
114
14
1905,1918
2017
2005
2006
top-third
1954
24
50.8
48.5
2.3
120
8
1905
2017
2006
2006
top-tenth
2006
36
50.5
48.4
2.1
121
6
1918
2000
2006
2006
top-tenth
2006,2017,2022
48
50.3
48.4
1.9
120
6
1907
2001,2023
2006
2002
top-tenth
60
50.1
48.4
1.7
118
7
1908
2002
2005
2006
top-tenth
2008