Illinois, Climate Division 8. Southwest, Average Temperature Rankings, April 2022
1901-2000
Degrees Fahrenheit
1
54.6
55.3
-0.7
48
82
1907
1896
2020
2021
normal
1937,1943,2000
2
51.2
50.0
1.2
83
47
1960
2012
2019
2021
normal
1990,2023
3
45.2
44.9
0.3
65
65
1899
2012
2021
2020
normal
1972,2003
4
41.1
41.5
-0.4
53
77
1978
2012
2018
2021
normal
1917,1941,1983,1994
5
42.1
40.1
2.0
103
26
1978
2012
2021
2020
top-third
1955,1995
6
42.5
40.9
1.6
99
30
1912
2012
2021
2021
top-third
1972,2021
7
45.3
43.2
2.1
107
22
1899,1978
2012
2021
2017
top-third
1935,1946
8
48.5
46.5
2.0
110
19
1918
2017
2021
2020
top-third
9
51.7
49.8
1.9
112
17
1918
2017
2021
2020
top-third
1942
10
54.3
52.6
1.7
110
19
1918
2012
2021
2020
top-third
1981
11
56.2
54.5
1.7
114
15
1918
2012,2017
2021
2020
top-third
1921,1939,1974,2020
12
56.9
55.4
1.5
111
18
1918
2012,2017
2021
2020
top-third
1937,1939,1976
18
52.1
50.5
1.6
108
20
1905,1979
2017
2021
2018
top-third
2016
24
56.4
55.4
1.0
103
25
1978
2017
2019
2021
top-third
2003,2005,2019
36
56.7
55.4
1.3
110
17
1979
2018
2021
2021
top-third
1923,1939,2021
48
56.8
55.3
1.5
116
10
1980
2019
2021
2020
top-tenth
1956,1957,2007
60
56.5
55.3
1.2
109
16
1980,1981
2020
2018
2021
top-third
1934,1936,1956,2007