Viewing Station: IL-WL-67 : Channahon 2.5 SSE
Mar 30, 2010 - Sep 16, 20254,778 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.37"
September 1-16, 2025(16 of 16 days covered by obs)
NOAA Normal
1.75"
Departure from Normal
-1.38" : 21% of Normal
Year-To-Date: 22.68"
Jan 1 to Sep 16, 2025(259 of 259 days covered by obs)
NOAA Normal
28.60"
Departure from Normal
-5.92" : 79% of Normal
Water Year-To-Date: 28.33"
Oct 1, 2024 to Sep 16, 2025(351 of 351 days covered by obs)
NOAA Normal
36.36"
Departure from Normal
-8.03" : 78% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.05
2.08
-0.03
Feb
1.73
1.83
-0.10
Mar
2.33
2.30
0.03
Apr
3.70
3.68
0.02
May
4.68
4.50
0.18
Jun
4.39
4.50
-0.11
Jul
4.10
4.15
-0.05
Aug
3.87
3.74
0.13
Sep
3.29
3.24
0.05
Oct
3.19
3.11
0.08
Nov
2.52
2.47
0.05
Dec
2.05
2.06
-0.01
37.90
37.66
0.24