Viewing Station: IL-CK-426 : Oak Park 1.0 SSE
May 26, 2024 - Apr 9, 2026643 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.05"
April 1-9, 2026(9 of 9 days covered by obs)
NOAA Normal
1.13"
Departure from Normal
0.92" : 181% of Normal
Year-To-Date: 9.79"
Jan 1 to Apr 9, 2026(97 of 99 days covered by obs)
NOAA Normal
7.19"
Departure from Normal
2.60" : 136% of Normal
Water Year-To-Date: 16.52"
Oct 1, 2025 to Apr 9, 2026(188 of 191 days covered by obs)
NOAA Normal
15.22"
Departure from Normal
1.30" : 109% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.98
2.17
-0.19
Feb
1.79
1.99
-0.20
Mar
2.29
2.32
-0.03
Apr
3.78
3.88
-0.10
May
4.50
4.53
-0.03
Jun
4.27
4.36
-0.09
Jul
3.68
3.77
-0.09
Aug
3.99
4.01
-0.02
Sep
3.26
3.22
0.04
Oct
3.44
3.58
-0.14
Nov
2.50
2.68
-0.18
Dec
2.09
2.26
-0.17
37.57
38.77
-1.20