Viewing Station: IL-MCL-66 : Normal 1.4 WNW
May 1, 2021 - Sep 18, 20261,395 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.80"
September 1-22, 2026(18 of 22 days covered by obs)
NOAA Normal
2.25"
Departure from Normal
-0.45" : 80% of Normal
Year-To-Date: 27.48"
Jan 1 to Sep 22, 2026(167 of 265 days covered by obs)
NOAA Normal
28.76"
Departure from Normal
-1.28" : 96% of Normal
Water Year-To-Date: 30.20"
Oct 1, 2025 to Sep 22, 2026(226 of 357 days covered by obs)
NOAA Normal
36.99"
Departure from Normal
-6.79" : 82% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.09
2.26
-0.17
Feb
1.82
1.94
-0.12
Mar
2.58
2.63
-0.05
Apr
3.78
3.73
0.05
May
4.54
4.51
0.03
Jun
4.02
3.99
0.03
Jul
4.08
3.89
0.19
Aug
3.60
3.61
-0.01
Sep
3.07
3.27
-0.20
Oct
3.26
3.27
-0.01
Nov
2.80
2.73
0.07
Dec
2.17
2.28
-0.11
37.81
38.11
-0.30