Illinois, Climate Division 1 April-June Average Temperature
Degrees Fahrenheit
1901-1997
-99
189506
61.4
2.4
189606
63.8
4.8
189706
57.9
-1.1
189806
58.7
-0.3
189906
60.4
1.4
190006
59.9
0.9
190106
59.7
0.7
190206
58.3
-0.7
190306
58.3
-0.7
190406
56.7
-2.3
190506
58.7
-0.3
190606
59.6
0.6
190706
53.1
-5.9
190806
58.4
-0.6
190906
56.7
-2.3
191006
57.9
-1.1
191106
61.4
2.4
191206
59.0
0.0
191306
59.4
0.4
191406
60.2
1.2
191506
58.5
-0.5
191606
56.8
-2.2
191706
54.6
-4.4
191806
58.5
-0.5
191906
59.3
0.3
192006
56.9
-2.1
192106
63.0
4.0
192206
61.1
2.1
192306
59.0
0.0
192406
56.3
-2.7
192506
60.1
1.1
192606
56.2
-2.8
192706
56.6
-2.4
192806
56.6
-2.4
192906
57.9
-1.1
193006
60.2
1.2
193106
59.5
0.5
193206
60.0
1.0
193306
61.4
2.4
193406
64.3
5.3
193506
55.0
-4.0
193606
59.1
0.1
193706
58.5
-0.5
193806
59.0
0.0
193906
60.2
1.2
194006
58.0
-1.0
194106
62.5
3.5
194206
60.7
1.7
194306
58.6
-0.4
194406
60.5
1.5
194506
56.1
-2.9
194606
59.2
0.2
194706
55.8
-3.2
194806
59.3
0.3
194906
60.7
1.7
195006
56.6
-2.4
195106
57.6
-1.4
195206
60.8
1.8
195306
58.8
-0.2
195406
60.0
1.0
195506
61.0
2.0
195606
59.6
0.6
195706
58.8
-0.2
195806
57.8
-1.2
195906
61.1
2.1
196006
58.5
-0.5
196106
56.0
-3.0
196206
60.9
1.9
196306
60.6
1.6
196406
61.6
2.6
196506
60.0
1.0
196606
56.6
-2.4
196706
58.2
-0.8
196806
59.1
0.1
196906
58.2
-0.8
197006
60.5
1.5
197106
60.0
1.0
197206
58.2
-0.8
197306
58.4
-0.6
197406
58.0
-1.0
197506
58.9
-0.1
197606
59.2
0.2
197706
63.6
4.6
197806
59.3
0.3
197906
58.1
-0.9
198006
59.0
0.0
198106
60.0
1.0
198206
58.0
-1.0
198306
57.1
-1.9
198406
58.6
-0.4
198506
61.5
2.5
198606
61.3
2.3
198706
63.2
4.2
198806
61.4
2.4
198906
58.1
-0.9
199006
58.4
-0.6
199106
63.8
4.8
199206
57.8
-1.2
199306
58.3
-0.7
199406
60.5
1.5
199506
58.3
-0.7
199606
57.2
-1.8
199706
56.7
-2.3