Viewing Station: MO-SS-54 : O'fallon 1.9 NNE
Jul 29, 2022 - Aug 17, 202633 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.14"
August 1-17, 2026(6 of 17 days covered by obs)
NOAA Normal
1.99"
Departure from Normal
0.15" : 108% of Normal
Year-To-Date: 3.22"
Jan 1 to Aug 17, 2026(8 of 229 days covered by obs)
NOAA Normal
27.89"
Departure from Normal
-24.67" : 12% of Normal
Water Year-To-Date: 3.22"
Oct 1, 2025 to Aug 17, 2026(8 of 321 days covered by obs)
NOAA Normal
36.94"
Departure from Normal
-33.72" : 9% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.45
2.50
-0.05
Feb
2.19
2.29
-0.10
Mar
3.47
3.41
0.06
Apr
4.66
4.63
0.03
May
4.95
5.04
-0.09
Jun
4.45
4.45
0.00
Jul
3.73
3.90
-0.17
Aug
3.63
3.53
0.10
Sep
3.31
3.24
0.07
Oct
3.13
3.22
-0.09
Nov
3.37
3.43
-0.06
Dec
2.55
2.65
-0.10
41.89
42.29
-0.40