Illinois, Climate Division 2 January 1978 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
14.0
21.3
-7.3
12
119
1912
2006
1977
1976
bottom-tenth
1904
2
17.9
23.6
-5.7
10
120
1977
1932
1977
1976
bottom-tenth
3
24.8
28.4
-3.6
13
117
1977
2002
1977
1976
bottom-tenth
1970
4
31.1
34.4
-3.3
10
120
1977
1932
1977
1976
bottom-tenth
1970
5
37.6
40.2
-2.6
7
123
1977
1932
1977
1976
bottom-tenth
1963,1970
6
42.8
45.4
-2.6
7
123
1977
1932
1977
1976
bottom-tenth
7
47.5
49.4
-1.9
14
116
1977
1932
1977
1976
bottom-third
1968,1970,1997
8
50.0
51.8
-1.8
14
116
1918
1932
1977
1976
bottom-third
9
51.9
52.6
-0.7
35
95
1918
1932
1977
1976
bottom-third
1899,1973
10
52.1
52.1
0.0
53
77
1918
1932
1977
1976
normal
1915,1944,1958
11
51.3
50.6
0.7
82
48
1918
2013
1977
1974
normal
1921,1949
12
49.1
48.4
0.7
83
47
1918
2013
1977
1974
normal
1909
18
45.6
47.4
-1.8
6
123
1918
2013
1952
1977
bottom-tenth
2015
24
47.7
48.4
-0.7
19
110
1918
2013
1977
1976
bottom-third
1908,1911,1917,1959,1968,1969,1979,1998
36
48.0
48.4
-0.4
31
97
1918
2013
1977
1976
bottom-third
1903,1925,1959,1964,1969,1998
48
48.2
48.4
-0.2
39
88
1918
2002
1973
1977
bottom-third
1903,1909,1915,1916,1917,1946,1965
60
48.5
48.4
0.1
56
70
1906
2003
1977
1976
normal
1900,1902,1946,1974,1986