Viewing Station: IL-CP-153 : Dewey 2.70 NW
Dec 4, 2021 - Sep 22, 20261,124 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.04"
September 1-23, 2026(22 of 23 days covered by obs)
NOAA Normal
2.34"
Departure from Normal
-0.30" : 87% of Normal
Year-To-Date: 38.45"
Jan 1 to Sep 23, 2026(251 of 266 days covered by obs)
NOAA Normal
29.68"
Departure from Normal
8.77" : 130% of Normal
Water Year-To-Date: 42.24"
Oct 1, 2025 to Sep 23, 2026(340 of 358 days covered by obs)
NOAA Normal
38.06"
Departure from Normal
4.18" : 111% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.21
2.24
-0.03
Feb
1.87
2.06
-0.19
Mar
2.62
2.68
-0.06
Apr
3.95
3.89
0.06
May
4.44
4.45
-0.01
Jun
4.44
4.56
-0.12
Jul
4.21
4.11
0.10
Aug
3.60
3.54
0.06
Sep
3.05
3.24
-0.19
Oct
3.20
3.18
0.02
Nov
3.00
2.98
0.02
Dec
2.18
2.31
-0.13
38.77
39.24
-0.47