Illinois, Climate Division 7 36-Month Period Ending in April Average Temperature
Degrees Fahrenheit
1901-2000
-99
189804
53.0
0.0
189904
52.3
-0.7
190004
52.4
-0.6
190104
52.5
-0.5
190204
52.8
-0.2
190304
52.9
-0.1
190404
51.7
-1.3
190504
51.4
-1.6
190604
51.2
-1.8
190704
52.3
-0.7
190804
52.6
-0.4
190904
53.0
0.0
191004
52.7
-0.3
191104
52.8
-0.2
191204
52.0
-1.0
191304
52.1
-0.9
191404
52.9
-0.1
191504
53.7
0.7
191604
53.4
0.4
191704
52.9
-0.1
191804
51.3
-1.7
191904
52.2
-0.8
192004
52.0
-1.0
192104
53.9
0.9
192204
54.0
1.0
192304
54.6
1.6
192404
53.7
0.7
192504
53.0
0.0
192604
52.2
-0.8
192704
52.6
-0.4
192804
52.5
-0.5
192904
52.8
-0.2
193004
52.3
-0.7
193104
52.9
-0.1
193204
54.2
1.2
193304
54.6
1.6
193404
54.7
1.7
193504
54.4
1.4
193604
53.4
0.4
193704
53.6
0.6
193804
53.0
0.0
193904
54.2
1.2
194004
53.5
0.5
194104
53.4
0.4
194204
53.7
0.7
194304
53.8
0.8
194404
53.7
0.7
194504
53.4
0.4
194604
53.5
0.5
194704
53.4
0.4
194804
53.0
0.0
194904
53.2
0.2
195004
53.8
0.8
195104
53.0
0.0
195204
52.6
-0.4
195304
52.6
-0.4
195404
54.3
1.3
195504
55.0
2.0
195604
54.6
1.6
195704
54.1
1.1
195804
53.1
0.1
195904
52.8
-0.2
196004
52.3
-0.7
196104
52.5
-0.5
196204
52.4
-0.6
196304
52.3
-0.7
196404
52.4
-0.6
196504
52.8
-0.2
196604
53.1
0.1
196704
53.1
0.1
196804
52.5
-0.5
196904
52.1
-0.9
197004
51.4
-1.6
197104
52.1
-0.9
197204
52.7
-0.3
197304
53.4
0.4
197404
53.8
0.8
197504
53.2
0.2
197604
53.8
0.8
197704
52.3
-0.7
197804
51.8
-1.2
197904
50.6
-2.4
198004
51.2
-1.8
198104
52.3
-0.7
198204
52.2
-0.8
198304
52.9
-0.1
198404
52.3
-0.7
198504
53.2
0.2
198604
53.0
0.0
198704
53.7
0.7
198804
53.9
0.9
198904
54.1
1.1
199004
53.8
0.8
199104
53.9
0.9
199204
54.5
1.5
199304
53.9
0.9
199404
53.3
0.3
199504
52.8
-0.2
199604
52.9
-0.1
199704
52.9
-0.1
199804
52.8
-0.2
199904
54.0
1.0
200004
54.9
1.9
200104
54.5
1.5
200204
54.4
1.4
200304
53.8
0.8
200404
54.2
1.2
200504
53.9
0.9
200604
54.6
1.6
200704
54.6
1.6
200804
54.8
1.8
200904
53.9
0.9