Viewing Station: IL-WD-18 : Prophetstown 0.2 SW
Apr 7, 2018 - May 27, 20262,632 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.06"
May 1-27, 2026(27 of 27 days covered by obs)
NOAA Normal
4.02"
Departure from Normal
-1.96" : 51% of Normal
Year-To-Date: 14.34"
Jan 1 to May 27, 2026(147 of 147 days covered by obs)
NOAA Normal
13.56"
Departure from Normal
0.78" : 106% of Normal
Water Year-To-Date: 22.01"
Oct 1, 2025 to May 27, 2026(239 of 239 days covered by obs)
NOAA Normal
20.84"
Departure from Normal
1.17" : 106% 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