Viewing Station: IL-WD-18 : Prophetstown 0.2 SW
Apr 7, 2018 - Sep 17, 20252,442 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.09"
September 1-17, 2025(17 of 17 days covered by obs)
NOAA Normal
2.13"
Departure from Normal
-2.04" : 4% of Normal
Year-To-Date: 24.25"
Jan 1 to Sep 17, 2025(259 of 260 days covered by obs)
NOAA Normal
29.24"
Departure from Normal
-4.99" : 83% of Normal
Water Year-To-Date: 30.10"
Oct 1, 2024 to Sep 17, 2025(350 of 352 days covered by obs)
NOAA Normal
36.52"
Departure from Normal
-6.42" : 82% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.63
1.64
-0.01
Feb
1.70
1.74
-0.04
Mar
2.50
2.53
-0.03
Apr
3.71
3.72
-0.01
May
4.62
4.81
-0.19
Jun
4.93
4.91
0.02
Jul
4.10
4.03
0.07
Aug
3.92
4.18
-0.26
Sep
3.76
3.47
0.29
Oct
2.86
3.02
-0.16
Nov
2.36
2.14
0.22
Dec
2.06
2.01
0.05
38.15
38.20
-0.05