Viewing Station: IL-CK-323 : Chicago 6.8 NW
Apr 2, 2020 - Dec 12, 20252,052 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.71"
December 1-16, 2025(12 of 16 days covered by obs)
NOAA Normal
1.09"
Departure from Normal
-0.38" : 65% of Normal
Year-To-Date: 35.80"
Jan 1 to Dec 16, 2025(346 of 350 days covered by obs)
NOAA Normal
36.39"
Departure from Normal
-0.59" : 98% of Normal
Water Year-To-Date: 6.77"
Oct 1, 2025 to Dec 16, 2025(73 of 77 days covered by obs)
NOAA Normal
7.00"
Departure from Normal
-0.23" : 97% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.99
2.17
-0.18
Feb
1.84
2.06
-0.22
Mar
2.25
2.27
-0.02
Apr
3.70
3.80
-0.10
May
4.44
4.60
-0.16
Jun
4.37
4.40
-0.03
Jul
3.69
3.72
-0.03
Aug
3.81
3.83
-0.02
Sep
3.30
3.28
0.02
Oct
3.41
3.66
-0.25
Nov
2.50
2.66
-0.16
Dec
2.12
2.29
-0.17
37.42
38.74
-1.32