Viewing Station: IL-CK-74 : Oak Park 1.3 NNE
Jul 9, 2007 - Jun 6, 20266,530 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.42"
June 1-6, 2026(6 of 6 days covered by obs)
NOAA Normal
0.86"
Departure from Normal
-0.44" : 49% of Normal
Year-To-Date: 15.22"
Jan 1 to Jun 6, 2026(157 of 157 days covered by obs)
NOAA Normal
15.16"
Departure from Normal
0.06" : 100% of Normal
Water Year-To-Date: 22.58"
Oct 1, 2025 to Jun 6, 2026(248 of 249 days covered by obs)
NOAA Normal
23.16"
Departure from Normal
-0.58" : 98% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.97
2.16
-0.19
Feb
1.81
1.98
-0.17
Mar
2.29
2.31
-0.02
Apr
3.76
3.88
-0.12
May
4.47
4.56
-0.09
Jun
4.28
4.35
-0.07
Jul
3.67
3.74
-0.07
Aug
3.95
3.99
-0.04
Sep
3.25
3.23
0.02
Oct
3.43
3.58
-0.15
Nov
2.49
2.67
-0.18
Dec
2.08
2.26
-0.18
37.45
38.71
-1.26