Viewing Station: IL-MU-1 : Arthur 0.8 NNW
Feb 27, 2009 - Sep 15, 20251,868 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.09"
September 1-16, 2025(15 of 16 days covered by obs)
NOAA Normal
1.58"
Departure from Normal
-1.49" : 6% of Normal
Year-To-Date: 17.19"
Jan 1 to Sep 16, 2025(168 of 259 days covered by obs)
NOAA Normal
28.86"
Departure from Normal
-11.67" : 60% of Normal
Water Year-To-Date: 22.05"
Oct 1, 2024 to Sep 16, 2025(219 of 351 days covered by obs)
NOAA Normal
37.78"
Departure from Normal
-15.73" : 58% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.30
2.39
-0.09
Feb
1.98
2.08
-0.10
Mar
2.71
2.79
-0.08
Apr
4.21
4.31
-0.10
May
4.41
4.53
-0.12
Jun
4.48
4.54
-0.06
Jul
4.06
4.02
0.04
Aug
3.13
2.79
0.34
Sep
2.96
2.98
-0.02
Oct
3.29
3.30
-0.01
Nov
3.28
3.34
-0.06
Dec
2.35
2.48
-0.13
39.16
39.55
-0.39