May 1998 - April 2002 Illinois Divisional Average Temperature
-99
1901-2000 base period
Degrees Fahrenheit
125 years
1901-2000
1101
Northwest
1
11
Illinois
IL
50.5
2.3
125
48.2
1102
Northeast
2
11
Illinois
IL
50.8
2.3
125
48.4
1103
West
3
11
Illinois
IL
52.9
1.7
122
51.2
1104
Central
4
11
Illinois
IL
52.6
2
122
50.7
1105
East
5
11
Illinois
IL
52.3
2
124
50.3
1106
West Southwest
6
11
Illinois
IL
54.7
1.6
123
53.1
1107
East Southeast
7
11
Illinois
IL
54.7
1.7
122
53
1108
Southwest
8
11
Illinois
IL
57
1.6
122
55.3
1109
Southeast
9
11
Illinois
IL
56.9
1.5
120
55.4