Illinois, Climate Division 3 December 2009 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
27.4
28.3
-0.9
53
77
1983
2015
2008
2006
normal
2
37.1
34.3
2.8
101
29
2000
1931
2008
2006
top-third
1939,1990
3
40.9
41.0
-0.1
60
70
1976
1931
2008
2007
normal
1952
4
47.0
47.3
-0.3
52
78
1976
1931
2008
2007
normal
1902
5
51.7
52.5
-0.8
36
94
1976
1931
2008
2007
bottom-third
1902,1904,1909,1942,1981
6
54.7
56.5
-1.8
18
112
1976
1931
2000
2008
bottom-third
7
57.2
58.6
-1.4
21
109
1976
1931
2000
2008
bottom-third
1974,1993,2014
8
57.9
59.1
-1.2
26
104
1917
1931
2008
2007
bottom-third
1909,1926
9
57.1
58.2
-1.1
28
102
1917
1931
2008
2007
bottom-third
1995,2013
10
55.6
56.3
-0.7
33
97
1917
2012
2008
2007
bottom-third
1906,1929,1978,1995
11
53.4
53.7
-0.3
49
81
1917
2012
2008
2007
normal
1915,1980,1997
12
50.6
51.2
-0.6
39
91
1917
2012
2008
2007
bottom-third
1898,1962,1995
18
52.1
53.0
-0.9
25
104
1904
2012
1997
2008
bottom-third
1950
24
50.3
51.2
-0.9
17
112
1979
2017
1997
2008
bottom-third
1968,1969,1970
36
51.2
51.2
0.0
68
60
1905
2017
1997
2008
normal
1911,1920,1930,1944,1958,1964,1966,1973,2014
48
51.8
51.2
0.6
84
43
1905
1934
1999
2008
normal
1992,1993,1999
60
52.1
51.2
0.9
102
24
1905
1934
2004
2008
top-third
2018