Viewing Station: MO-SS-42 : O'Fallon 2.6 NNE
Mar 14, 2020 - Jul 19, 20261,614 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.82"
July 1-19, 2026(18 of 19 days covered by obs)
NOAA Normal
2.29"
Departure from Normal
-0.47" : 80% of Normal
Year-To-Date: 25.26"
Jan 1 to Jul 19, 2026(141 of 200 days covered by obs)
NOAA Normal
24.46"
Departure from Normal
0.80" : 103% of Normal
Water Year-To-Date: 28.45"
Oct 1, 2025 to Jul 19, 2026(203 of 292 days covered by obs)
NOAA Normal
33.51"
Departure from Normal
-5.06" : 85% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.45
2.48
-0.03
Feb
2.19
2.27
-0.08
Mar
3.47
3.37
0.10
Apr
4.66
4.60
0.06
May
4.95
5.03
-0.08
Jun
4.45
4.44
0.01
Jul
3.73
3.90
-0.17
Aug
3.63
3.52
0.11
Sep
3.31
3.24
0.07
Oct
3.13
3.22
-0.09
Nov
3.37
3.41
-0.04
Dec
2.55
2.63
-0.08
41.89
42.11
-0.22