Viewing Station: IL-WL-42 : Mokena 1.3 W
Apr 7, 2008 - Aug 14, 20263,225 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 5.26"
August 1-14, 2026(14 of 14 days covered by obs)
NOAA Normal
1.82"
Departure from Normal
3.44" : 289% of Normal
Year-To-Date: 38.58"
Jan 1 to Aug 14, 2026(223 of 226 days covered by obs)
NOAA Normal
25.36"
Departure from Normal
13.22" : 152% of Normal
Water Year-To-Date: 44.15"
Oct 1, 2025 to Aug 14, 2026(313 of 318 days covered by obs)
NOAA Normal
33.60"
Departure from Normal
10.55" : 131% 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