Viewing Station: IL-CK-211 : Oak Lawn 1.6 WNW
Mar 4, 2013 - Dec 22, 20254,549 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.82"
December 1-22, 2025(22 of 22 days covered by obs)
NOAA Normal
1.48"
Departure from Normal
-0.66" : 55% of Normal
Year-To-Date: 36.44"
Jan 1 to Dec 22, 2025(355 of 356 days covered by obs)
NOAA Normal
37.26"
Departure from Normal
-0.82" : 98% of Normal
Water Year-To-Date: 5.88"
Oct 1, 2025 to Dec 22, 2025(83 of 83 days covered by obs)
NOAA Normal
7.54"
Departure from Normal
-1.66" : 78% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.03
2.20
-0.17
Feb
1.81
1.99
-0.18
Mar
2.36
2.36
0.00
Apr
3.81
3.88
-0.07
May
4.43
4.54
-0.11
Jun
4.26
4.32
-0.06
Jul
3.71
3.92
-0.21
Aug
4.06
4.03
0.03
Sep
3.25
3.25
0.00
Oct
3.50
3.42
0.08
Nov
2.56
2.61
-0.05
Dec
2.09
2.29
-0.20
37.87
38.81
-0.94