Viewing Station: IL-WM-31 : Carterville 3.6 NW
Apr 20, 2026 - Sep 20, 2026156 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.40"
September 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
2.16"
Departure from Normal
-0.76" : 65% of Normal
Year-To-Date: 15.93"
Jan 1 to Sep 20, 2026(154 of 263 days covered by obs)
NOAA Normal
34.36"
Departure from Normal
-18.43" : 46% of Normal
Water Year-To-Date: 15.93"
Oct 1, 2025 to Sep 20, 2026(154 of 355 days covered by obs)
NOAA Normal
45.39"
Departure from Normal
-29.46" : 35% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.13
3.18
-0.05
Feb
2.97
3.05
-0.08
Mar
4.26
4.24
0.02
Apr
5.32
5.22
0.10
May
5.08
5.11
-0.03
Jun
4.40
4.40
0.00
Jul
3.87
3.79
0.08
Aug
3.17
3.04
0.13
Sep
3.24
3.15
0.09
Oct
3.52
3.53
-0.01
Nov
4.12
4.12
0.00
Dec
3.39
3.55
-0.16
46.47
46.38
0.09