Viewing Station: IL-IR-29 : Donovan 5.8 SE
Aug 28, 2024 - Sep 18, 2026484 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.33"
September 1-18, 2026(18 of 18 days covered by obs)
NOAA Normal
1.81"
Departure from Normal
-0.48" : 73% of Normal
Year-To-Date: 28.22"
Jan 1 to Sep 18, 2026(219 of 261 days covered by obs)
NOAA Normal
29.38"
Departure from Normal
-1.16" : 96% of Normal
Water Year-To-Date: 33.52"
Oct 1, 2025 to Sep 18, 2026(262 of 353 days covered by obs)
NOAA Normal
37.26"
Departure from Normal
-3.74" : 90% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.26
2.26
0.00
Feb
1.86
1.93
-0.07
Mar
2.47
2.51
-0.04
Apr
3.63
3.71
-0.08
May
4.36
4.35
0.01
Jun
5.04
5.05
-0.01
Jul
4.38
4.53
-0.15
Aug
3.57
3.59
-0.02
Sep
3.02
3.15
-0.13
Oct
3.10
3.18
-0.08
Nov
2.65
2.67
-0.02
Dec
2.13
2.21
-0.08
38.47
39.14
-0.67