Viewing Station: IL-CK-359 : Chicago 5.5 NNW
Apr 10, 2021 - Apr 9, 20261,697 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.03"
April 1-9, 2026(9 of 9 days covered by obs)
NOAA Normal
1.13"
Departure from Normal
0.90" : 180% of Normal
Year-To-Date: 9.58"
Jan 1 to Apr 9, 2026(99 of 99 days covered by obs)
NOAA Normal
7.19"
Departure from Normal
2.39" : 133% of Normal
Water Year-To-Date: 16.55"
Oct 1, 2025 to Apr 9, 2026(191 of 191 days covered by obs)
NOAA Normal
15.20"
Departure from Normal
1.35" : 109% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.99
2.18
-0.19
Feb
1.83
2.07
-0.24
Mar
2.25
2.26
-0.01
Apr
3.75
3.79
-0.04
May
4.46
4.57
-0.11
Jun
4.28
4.43
-0.15
Jul
3.69
3.77
-0.08
Aug
3.86
3.90
-0.04
Sep
3.29
3.29
0.00
Oct
3.40
3.67
-0.27
Nov
2.50
2.65
-0.15
Dec
2.10
2.30
-0.20
37.40
38.88
-1.48