Viewing Station: IL-WM-27 : Herrin 1.0 SE
Jun 19, 2025 - May 3, 2026313 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.02"
May 1-3, 2026(2 of 3 days covered by obs)
NOAA Normal
0.49"
Departure from Normal
-0.47" : 4% of Normal
Year-To-Date: 12.27"
Jan 1 to May 3, 2026(121 of 123 days covered by obs)
NOAA Normal
16.61"
Departure from Normal
-4.34" : 74% of Normal
Water Year-To-Date: 20.57"
Oct 1, 2025 to May 3, 2026(212 of 215 days covered by obs)
NOAA Normal
27.84"
Departure from Normal
-7.27" : 74% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.24
3.19
0.05
Feb
3.08
3.09
-0.01
Mar
4.38
4.24
0.14
Apr
5.42
5.23
0.19
May
5.08
5.02
0.06
Jun
4.43
4.39
0.04
Jul
3.94
3.79
0.15
Aug
3.20
3.05
0.15
Sep
3.31
3.16
0.15
Oct
3.58
3.49
0.09
Nov
4.15
4.11
0.04
Dec
3.50
3.54
-0.04
47.31
46.30
1.01