Viewing Station: MO-SS-48 : St. Peters 4.5 W
Apr 8, 2021 - Sep 11, 20261,326 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.19"
September 1-11, 2026(11 of 11 days covered by obs)
NOAA Normal
1.21"
Departure from Normal
-0.02" : 98% of Normal
Year-To-Date: 32.18"
Jan 1 to Sep 11, 2026(250 of 254 days covered by obs)
NOAA Normal
30.85"
Departure from Normal
1.33" : 104% of Normal
Water Year-To-Date: 36.74"
Oct 1, 2025 to Sep 11, 2026(341 of 346 days covered by obs)
NOAA Normal
39.99"
Departure from Normal
-3.25" : 92% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.48
2.55
-0.07
Feb
2.22
2.35
-0.13
Mar
3.52
3.50
0.02
Apr
4.70
4.72
-0.02
May
4.96
5.06
-0.10
Jun
4.43
4.47
-0.04
Jul
3.70
3.89
-0.19
Aug
3.63
3.55
0.08
Sep
3.31
3.24
0.07
Oct
3.16
3.23
-0.07
Nov
3.41
3.47
-0.06
Dec
2.57
2.71
-0.14
42.09
42.74
-0.65