Viewing Station: IL-WL-42 : Mokena 1.3 W
Apr 7, 2008 - Sep 10, 20263,243 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 0.90"
September 1-10, 2026(10 of 10 days covered by obs)
NOAA Normal
1.14"
Departure from Normal
-0.24" : 79% of Normal
Year-To-Date: 39.87"
Jan 1 to Sep 10, 2026(250 of 253 days covered by obs)
NOAA Normal
28.71"
Departure from Normal
11.16" : 139% of Normal
Water Year-To-Date: 45.44"
Oct 1, 2025 to Sep 10, 2026(340 of 345 days covered by obs)
NOAA Normal
36.95"
Departure from Normal
8.49" : 123% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.14
2.15
-0.01
Feb
1.89
1.96
-0.07
Mar
2.42
2.35
0.07
Apr
3.81
3.80
0.01
May
4.56
4.61
-0.05
Jun
4.49
4.43
0.06
Jul
4.23
4.34
-0.11
Aug
4.03
3.98
0.05
Sep
3.41
3.35
0.06
Oct
3.40
3.38
0.02
Nov
2.65
2.61
0.04
Dec
2.19
2.17
0.02
39.22
39.13
0.09