Viewing Station: IL-HM-4 : McLeansboro 7.8 SE
Mar 27, 2019 - Sep 20, 20262,395 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.08"
September 1-21, 2026(20 of 21 days covered by obs)
NOAA Normal
2.32"
Departure from Normal
-1.24" : 46% of Normal
Year-To-Date: 31.31"
Jan 1 to Sep 21, 2026(263 of 264 days covered by obs)
NOAA Normal
34.56"
Departure from Normal
-3.25" : 91% of Normal
Water Year-To-Date: 36.90"
Oct 1, 2025 to Sep 21, 2026(354 of 356 days covered by obs)
NOAA Normal
45.63"
Departure from Normal
-8.73" : 81% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.47
3.34
0.13
Feb
3.01
2.99
0.02
Mar
4.35
4.17
0.18
Apr
5.10
5.03
0.07
May
4.72
4.89
-0.17
Jun
4.41
4.37
0.04
Jul
3.99
3.84
0.15
Aug
3.19
3.12
0.07
Sep
3.32
3.17
0.15
Oct
3.39
3.37
0.02
Nov
4.11
4.00
0.11
Dec
3.57
3.55
0.02
46.63
45.84
0.79