Viewing Station: IL-CK-320 : Park Forest 0.7 WNW
Dec 8, 2019 - Aug 21, 20251,957 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.73"
August 1-21, 2025(17 of 21 days covered by obs)
NOAA Normal
2.74"
Departure from Normal
1.99" : 173% of Normal
Year-To-Date: 20.57"
Jan 1 to Aug 21, 2025(205 of 233 days covered by obs)
NOAA Normal
26.43"
Departure from Normal
-5.86" : 78% of Normal
Water Year-To-Date: 28.20"
Oct 1, 2024 to Aug 21, 2025(293 of 325 days covered by obs)
NOAA Normal
34.72"
Departure from Normal
-6.52" : 81% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.26
2.27
-0.01
Feb
1.95
2.02
-0.07
Mar
2.40
2.43
-0.03
Apr
3.78
3.79
-0.01
May
4.38
4.55
-0.17
Jun
4.53
4.62
-0.09
Jul
4.39
4.45
-0.06
Aug
4.04
4.06
-0.02
Sep
3.44
3.36
0.08
Oct
3.39
3.51
-0.12
Nov
2.70
2.77
-0.07
Dec
2.20
2.26
-0.06
39.46
40.09
-0.63