Viewing Station: IL-MD-20 : Edwardsville 0.9 WSW
May 8, 2009 - Sep 11, 20265,139 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.47"
September 1-23, 2026(11 of 23 days covered by obs)
NOAA Normal
2.51"
Departure from Normal
-2.04" : 19% of Normal
Year-To-Date: 35.10"
Jan 1 to Sep 23, 2026(250 of 266 days covered by obs)
NOAA Normal
32.09"
Departure from Normal
3.01" : 109% of Normal
Water Year-To-Date: 42.18"
Oct 1, 2025 to Sep 23, 2026(341 of 358 days covered by obs)
NOAA Normal
41.47"
Departure from Normal
0.71" : 102% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.53
2.63
-0.10
Feb
2.25
2.37
-0.12
Mar
3.36
3.45
-0.09
Apr
4.73
4.88
-0.15
May
4.97
5.14
-0.17
Jun
4.18
4.67
-0.49
Jul
4.24
4.38
-0.14
Aug
3.32
3.79
-0.47
Sep
3.28
3.07
0.21
Oct
3.24
3.29
-0.05
Nov
3.50
3.46
0.04
Dec
2.64
2.64
0.00
42.24
43.77
-1.53