Viewing Station: IL-KN-67 : St. Charles 6.0 NW
May 11, 2008 - May 30, 20256,446 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.10"
May 1-30, 2025(30 of 30 days covered by obs)
NOAA Normal
4.59"
Departure from Normal
-2.49" : 46% of Normal
Year-To-Date: 11.07"
Jan 1 to May 30, 2025(150 of 150 days covered by obs)
NOAA Normal
14.06"
Departure from Normal
-2.99" : 79% of Normal
Water Year-To-Date: 17.12"
Oct 1, 2024 to May 30, 2025(242 of 242 days covered by obs)
NOAA Normal
21.87"
Departure from Normal
-4.75" : 78% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.74
1.85
-0.11
Feb
1.77
1.80
-0.03
Mar
2.26
2.29
-0.03
Apr
3.70
3.73
-0.03
May
4.74
4.87
-0.13
Jun
4.51
4.39
0.12
Jul
3.84
3.80
0.04
Aug
3.88
3.95
-0.07
Sep
3.36
3.44
-0.08
Oct
3.29
3.26
0.03
Nov
2.50
2.52
-0.02
Dec
2.02
2.15
-0.13
37.61
38.05
-0.44