Viewing Station: IL-LK-39 : Riverwoods 0.4 ENE
Apr 12, 2008 - Jul 9, 20266,124 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.29"
July 1-9, 2026(9 of 9 days covered by obs)
NOAA Normal
1.10"
Departure from Normal
0.19" : 118% of Normal
Year-To-Date: 21.83"
Jan 1 to Jul 9, 2026(173 of 190 days covered by obs)
NOAA Normal
19.50"
Departure from Normal
2.33" : 112% of Normal
Water Year-To-Date: 28.55"
Oct 1, 2025 to Jul 9, 2026(265 of 282 days covered by obs)
NOAA Normal
27.20"
Departure from Normal
1.35" : 105% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.88
1.98
-0.10
Feb
1.77
1.90
-0.13
Mar
2.22
2.26
-0.04
Apr
3.74
3.70
0.04
May
4.32
4.44
-0.12
Jun
4.47
4.25
0.22
Jul
3.78
3.62
0.16
Aug
3.78
3.80
-0.02
Sep
3.34
3.31
0.03
Oct
3.20
3.28
-0.08
Nov
2.45
2.41
0.04
Dec
2.05
2.09
-0.04
37.00
37.04
-0.04