Illinois, Climate Division 2 April 2018 Average Temperature Rankings
1901-2000
Degrees Fahrenheit
1
40.3
47.8
-7.5
2
128
1907
1915
1907
2017
bottom-tenth
2
38.2
41.9
-3.7
10
120
1926
2012
1996
2017
bottom-tenth
1904,1996
3
34.2
36.2
-2.0
35
95
1904
2012
2015
2017
bottom-third
1902,1913,1940
4
31.0
32.5
-1.5
36
94
1912
2012
2015
2017
bottom-third
1937,1943,1994
5
30.0
31.1
-1.1
29
100
1904
2012
2014
2017
bottom-third
1916,2009,2011
6
31.3
32.3
-1.0
32
97
1904
2012
2015
2017
bottom-third
7
34.8
35.1
-0.3
44
85
1904
2012
2015
2017
normal
1923,1924,1929,1952,1969
8
38.9
38.7
0.2
63
66
1904
2012
2015
2017
normal
1988,1989
9
42.2
42.3
-0.1
48
81
1904
2012,2017
2015
2017
normal
1910,1927,1933,1947,1956,1969
10
45.2
45.4
-0.2
46
83
1904
2012
2015
2017
normal
1969,1971,2001
11
47.5
47.5
0.0
56
73
1904
2012
2015
2017
normal
1946,1966
12
48.3
48.5
-0.2
49
80
1904,1918
2012
2015
2017
normal
1906
18
44.8
43.1
1.7
109
19
1905,1918
2017
2016
2017
top-third
2002,2008,2011
24
50.5
48.5
2.0
117
11
1905
2017
2016
2017
top-tenth
2022
36
50.9
48.4
2.5
125
2
1918
2000
2017
2000
top-tenth
48
50.0
48.4
1.6
113
13
1980
2002
2017
2013
top-tenth
2005
60
49.2
48.4
0.8
90
35
1908,1920
2002
2015
2017
top-third
1925,1956,1988,2011,2015