June 2008 - May 2011 Illinois Divisional Average Temperature
-99
1901-2000 base period
Degrees Fahrenheit
126 years
1901-2000
1101
Northwest
1
11
Illinois
IL
48.6
77
0.4
48.2
1102
Northeast
2
11
Illinois
IL
48.9
80
0.5
48.4
1103
West
3
11
Illinois
IL
51
46
-0.2
51.2
1104
Central
4
11
Illinois
IL
51
74
0.3
50.7
1105
East
5
11
Illinois
IL
50.7
77
0.5
50.3
1106
West Southwest
6
11
Illinois
IL
53.2
57
0.1
53.1
1107
East Southeast
7
11
Illinois
IL
53.6
82
0.5
53
1108
Southwest
8
11
Illinois
IL
55.8
81
0.5
55.4
1109
Southeast
9
11
Illinois
IL
55.9
84
0.5
55.4