Viewing Station: IL-MD-10 : Granite City 1.4 ENE
May 8, 2007 - Sep 16, 20256,428 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.12"
September 1-16, 2025(16 of 16 days covered by obs)
NOAA Normal
1.75"
Departure from Normal
-1.63" : 7% of Normal
Year-To-Date: 40.07"
Jan 1 to Sep 16, 2025(259 of 259 days covered by obs)
NOAA Normal
30.78"
Departure from Normal
9.29" : 130% of Normal
Water Year-To-Date: 53.73"
Oct 1, 2024 to Sep 16, 2025(351 of 351 days covered by obs)
NOAA Normal
39.87"
Departure from Normal
13.86" : 135% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.48
2.65
-0.17
Feb
2.14
2.29
-0.15
Mar
3.35
3.39
-0.04
Apr
4.62
4.70
-0.08
May
4.91
5.10
-0.19
Jun
4.24
4.42
-0.18
Jul
4.01
4.12
-0.11
Aug
3.28
3.68
-0.40
Sep
3.29
3.28
0.01
Oct
3.13
3.21
-0.08
Nov
3.36
3.52
-0.16
Dec
2.60
2.63
-0.03
41.41
42.99
-1.58