Viewing Station: MO-SL-27 : Ballwin 0.5 NNW
Oct 23, 2010 - Sep 15, 20255,193 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.14"
September 1-15, 2025(15 of 15 days covered by obs)
NOAA Normal
1.67"
Departure from Normal
-1.53" : 8% of Normal
Year-To-Date: 34.61"
Jan 1 to Sep 15, 2025(258 of 258 days covered by obs)
NOAA Normal
31.31"
Departure from Normal
3.30" : 111% of Normal
Water Year-To-Date: 50.03"
Oct 1, 2024 to Sep 15, 2025(350 of 350 days covered by obs)
NOAA Normal
40.46"
Departure from Normal
9.57" : 124% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.53
2.68
-0.15
Feb
2.19
2.33
-0.14
Mar
3.48
3.54
-0.06
Apr
4.66
4.69
-0.03
May
4.93
5.03
-0.10
Jun
4.47
4.48
-0.01
Jul
3.76
3.95
-0.19
Aug
3.61
3.43
0.18
Sep
3.35
3.32
0.03
Oct
3.13
3.27
-0.14
Nov
3.40
3.52
-0.12
Dec
2.62
2.71
-0.09
42.13
42.95
-0.82