Viewing Station: IL-LV-27 : Flanagan 0.4 NNE
Jan 17, 2023 - Sep 11, 20261,054 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.22"
September 1-11, 2026(11 of 11 days covered by obs)
NOAA Normal
1.24"
Departure from Normal
-1.02" : 18% of Normal
Year-To-Date: 30.21"
Jan 1 to Sep 11, 2026(253 of 254 days covered by obs)
NOAA Normal
27.33"
Departure from Normal
2.88" : 111% of Normal
Water Year-To-Date: 34.63"
Oct 1, 2025 to Sep 11, 2026(344 of 346 days covered by obs)
NOAA Normal
35.04"
Departure from Normal
-0.41" : 99% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.98
2.04
-0.06
Feb
1.73
1.81
-0.08
Mar
2.47
2.56
-0.09
Apr
3.64
3.57
0.07
May
4.62
4.48
0.14
Jun
4.12
4.05
0.07
Jul
3.94
3.87
0.07
Aug
3.59
3.46
0.13
Sep
3.39
3.30
0.09
Oct
3.15
3.11
0.04
Nov
2.52
2.59
-0.07
Dec
2.04
2.07
-0.03
37.19
36.91
0.28