Viewing Station: IL-RH-18 : Percy 0.7 SSW
Jun 17, 2026 - Aug 24, 202666 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.17"
August 1-24, 2026(24 of 24 days covered by obs)
NOAA Normal
2.38"
Departure from Normal
0.79" : 133% of Normal
Year-To-Date: 14.57"
Jan 1 to Aug 24, 2026(69 of 236 days covered by obs)
NOAA Normal
29.79"
Departure from Normal
-15.22" : 49% of Normal
Water Year-To-Date: 14.57"
Oct 1, 2025 to Aug 24, 2026(69 of 328 days covered by obs)
NOAA Normal
39.82"
Departure from Normal
-25.25" : 37% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.77
2.82
-0.05
Feb
2.58
2.57
0.01
Mar
3.84
3.85
-0.01
Apr
4.97
4.98
-0.01
May
5.14
5.35
-0.21
Jun
4.27
4.48
-0.21
Jul
3.84
3.91
-0.07
Aug
3.07
3.13
-0.06
Sep
2.93
3.14
-0.21
Oct
3.20
3.12
0.08
Nov
3.87
3.90
-0.03
Dec
2.96
2.97
-0.01
43.44
44.22
-0.78