December 1984 - May 1985 Illinois Divisional Average Temperature
-99
1901-2000 base period
Degrees Fahrenheit
128 years
1901-2000
1101
Northwest
1
11
Illinois
IL
36.7
90
1.3
35.4
1102
Northeast
2
11
Illinois
IL
37.3
95
1.5
35.8
1103
West
3
11
Illinois
IL
39.8
88
1
38.8
1104
Central
4
11
Illinois
IL
39.9
97
1.4
38.4
1105
East
5
11
Illinois
IL
39.9
98
1.7
38.1
1106
West Southwest
6
11
Illinois
IL
42.4
91
1.1
41.3
1107
East Southeast
7
11
Illinois
IL
42.4
84
1
41.4
1108
Southwest
8
11
Illinois
IL
44.8
74
0.5
44.2
1109
Southeast
9
11
Illinois
IL
44.6
62
0.2
44.4