Viewing Station: IL-CK-149 : Oak Lawn 0.5 SSW
Nov 1, 2009 - Oct 30, 20255,517 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.79"
October 1-31, 2025(30 of 31 days covered by obs)
NOAA Normal
3.50"
Departure from Normal
-0.71" : 80% of Normal
Year-To-Date: 34.86"
Jan 1 to Oct 31, 2025(303 of 304 days covered by obs)
NOAA Normal
33.22"
Departure from Normal
1.64" : 105% of Normal
Water Year-To-Date: 2.79"
Oct 1, 2025 to Oct 31, 2025(30 of 31 days covered by obs)
NOAA Normal
3.50"
Departure from Normal
-0.71" : 80% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.03
2.19
-0.16
Feb
1.81
1.99
-0.18
Mar
2.36
2.37
-0.01
Apr
3.81
3.86
-0.05
May
4.43
4.51
-0.08
Jun
4.26
4.29
-0.03
Jul
3.71
3.95
-0.24
Aug
4.06
4.03
0.03
Sep
3.25
3.26
-0.01
Oct
3.50
3.44
0.06
Nov
2.56
2.61
-0.05
Dec
2.09
2.28
-0.19
37.87
38.78
-0.91