Viewing Station: IL-CK-152 : Chicago Ridge 0.2 WSW
Oct 25, 2009 - Jan 15, 20265,549 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.43"
January 1-15, 2026(12 of 15 days covered by obs)
NOAA Normal
1.01"
Departure from Normal
1.42" : 241% of Normal
Year-To-Date: 2.43"
Jan 1 to Jan 15, 2026(12 of 15 days covered by obs)
NOAA Normal
1.01"
Departure from Normal
1.42" : 241% of Normal
Water Year-To-Date: 7.39"
Oct 1, 2025 to Jan 15, 2026(90 of 107 days covered by obs)
NOAA Normal
9.21"
Departure from Normal
-1.82" : 80% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.08
2.20
-0.12
Feb
1.85
1.99
-0.14
Mar
2.38
2.37
0.01
Apr
3.81
3.88
-0.07
May
4.46
4.57
-0.11
Jun
4.34
4.31
0.03
Jul
3.82
3.98
-0.16
Aug
4.02
4.05
-0.03
Sep
3.27
3.26
0.01
Oct
3.49
3.44
0.05
Nov
2.59
2.61
-0.02
Dec
2.12
2.29
-0.17
38.23
38.95
-0.72