Viewing Station: IL-LK-39 : Riverwoods 0.4 ENE
Apr 12, 2008 - Nov 20, 20255,908 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.31"
November 1-20, 2025(20 of 20 days covered by obs)
NOAA Normal
1.63"
Departure from Normal
-0.32" : 80% of Normal
Year-To-Date: 25.73"
Jan 1 to Nov 20, 2025(316 of 324 days covered by obs)
NOAA Normal
34.13"
Departure from Normal
-8.40" : 75% of Normal
Water Year-To-Date: 4.06"
Oct 1, 2025 to Nov 20, 2025(51 of 51 days covered by obs)
NOAA Normal
4.83"
Departure from Normal
-0.77" : 84% 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