Viewing Station: MO-SL-27 : Ballwin 0.5 NNW
Oct 23, 2010 - Sep 23, 20265,561 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.28"
September 1-23, 2026(23 of 23 days covered by obs)
NOAA Normal
2.57"
Departure from Normal
0.71" : 128% of Normal
Year-To-Date: 39.45"
Jan 1 to Sep 23, 2026(265 of 266 days covered by obs)
NOAA Normal
32.20"
Departure from Normal
7.25" : 123% of Normal
Water Year-To-Date: 45.91"
Oct 1, 2025 to Sep 23, 2026(357 of 358 days covered by obs)
NOAA Normal
41.35"
Departure from Normal
4.56" : 111% 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