Illinois, Climate Division 3 April 2015 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
54.5
51.3
3.2
106
24
2018
2010
2014
2010
top-third
2
46.5
45.2
1.3
88
42
1960
2012
2014
2012
top-third
1919,1922,2003
3
37.1
39.5
-2.4
31
99
1899
2012
2014
2012
bottom-third
1926,2018
4
34.0
35.6
-1.6
35
95
1912
2012
2014
2013
bottom-third
1959,1972
5
33.7
34.2
-0.5
49
80
1978
2012
2014
2013
normal
1997,2009
6
33.7
35.2
-1.5
25
104
1904,1912,1978
2012
2014
2013
bottom-third
1997
7
36.5
37.9
-1.4
24
105
1912
2012
2014
2013
bottom-third
1958,1993,2001
8
40.0
41.5
-1.5
23
106
1904,1978
2017
2014
2013
bottom-third
1958
9
43.7
45.0
-1.3
22
107
1978
2017
2014
2013
bottom-third
1960,1965,1997
10
46.4
48.1
-1.7
14
115
1904
2012
2014
2013
bottom-third
1926
11
48.7
50.3
-1.6
15
114
1904
2017
2014
2013
bottom-third
1962,1975
12
50.0
51.3
-1.3
22
107
1918
2017
2014
2013
bottom-third
18
43.3
45.9
-2.6
4
124
1979
2017
1979
2014
bottom-tenth
24
49.3
51.2
-1.9
5
123
1905
2017
1979
2014
bottom-tenth
36
50.2
51.2
-1.0
8
119
1979
2018
1980
2014
bottom-tenth
1969,1971
48
51.4
51.2
0.2
71
55
1980
1935
2011
2014
normal
1917,1954,1966,1967,1974,1999
60
51.5
51.2
0.3
72
53
1906,1979
1935
2011
2014
normal
1922,1940,1954,1959,1999