Viewing Station: IL-SC-47 : O'Fallon 1.8 N
Mar 26, 2025 - Jul 8, 2026466 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.04"
July 1-8, 2026(7 of 8 days covered by obs)
NOAA Normal
1.02"
Departure from Normal
-0.98" : 4% of Normal
Year-To-Date: 21.75"
Jan 1 to Jul 8, 2026(187 of 189 days covered by obs)
NOAA Normal
23.45"
Departure from Normal
-1.70" : 93% of Normal
Water Year-To-Date: 29.20"
Oct 1, 2025 to Jul 8, 2026(279 of 281 days covered by obs)
NOAA Normal
32.72"
Departure from Normal
-3.52" : 89% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.58
2.78
-0.20
Feb
2.21
2.37
-0.16
Mar
3.45
3.50
-0.05
Apr
4.85
4.87
-0.02
May
4.97
5.06
-0.09
Jun
4.37
4.65
-0.28
Jul
3.96
4.23
-0.27
Aug
3.32
3.64
-0.32
Sep
3.33
3.31
0.02
Oct
3.17
3.14
0.03
Nov
3.46
3.64
-0.18
Dec
2.64
2.70
-0.06
42.31
43.89
-1.58