April - May 1977 Illinois Divisional Average Temperature
-99
1901-2000 base period
Degrees Fahrenheit
129 years
1901-2000
1101
Northwest
1
11
Illinois
IL
61.4
7.3
129
54
1102
Northeast
2
11
Illinois
IL
60.7
7.3
129
53.4
1103
West
3
11
Illinois
IL
63.3
6.4
128
56.8
1104
Central
4
11
Illinois
IL
63.1
7
129
56.1
1105
East
5
11
Illinois
IL
62.8
7.3
129
55.4
1106
West Southwest
6
11
Illinois
IL
64.4
6.1
128
58.3
1107
East Southeast
7
11
Illinois
IL
64
6
128
58
1108
Southwest
8
11
Illinois
IL
65.1
4.9
128
60.2
1109
Southeast
9
11
Illinois
IL
65
4.8
127
60.2