Illinois September-May Precipitation
Inches
1901-1917
-99
189605
25.52
0.39
189705
28.38
3.25
189805
30.52
5.39
189905
26.84
1.71
190005
22.21
-2.92
190105
19.68
-5.45
190205
20.09
-5.04
190305
27.16
2.03
190405
26.56
1.43
190505
21.40
-3.73
190605
25.41
0.28
190705
29.41
4.28
190805
30.20
5.07
190905
24.48
-0.65
191005
26.14
1.01
191105
22.80
-2.33
191205
31.81
6.68
191305
26.19
1.06
191405
21.58
-3.55
191505
23.87
-1.26
191605
26.29
1.16
191705
24.20
-0.93