Viewing Station: IL-CK-278 : Hoffman Estates 1.6 SE
Apr 5, 2016 - May 27, 20263,686 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.24"
May 1-27, 2026(27 of 27 days covered by obs)
NOAA Normal
4.03"
Departure from Normal
-2.79" : 31% of Normal
Year-To-Date: 14.50"
Jan 1 to May 27, 2026(147 of 147 days covered by obs)
NOAA Normal
13.70"
Departure from Normal
0.80" : 106% of Normal
Water Year-To-Date: 20.44"
Oct 1, 2025 to May 27, 2026(239 of 239 days covered by obs)
NOAA Normal
21.47"
Departure from Normal
-1.03" : 95% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.83
1.97
-0.14
Feb
1.77
1.87
-0.10
Mar
2.29
2.24
0.05
Apr
3.78
3.74
0.04
May
4.63
4.79
-0.16
Jun
4.59
4.44
0.15
Jul
3.85
3.71
0.14
Aug
3.92
4.12
-0.20
Sep
3.43
3.41
0.02
Oct
3.27
3.31
-0.04
Nov
2.42
2.47
-0.05
Dec
2.08
2.12
-0.04
37.86
38.19
-0.33