Viewing Station: MO-SS-48 : St. Peters 4.5 W
Apr 8, 2021 - May 27, 20261,249 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.82"
May 1-27, 2026(24 of 27 days covered by obs)
NOAA Normal
4.32"
Departure from Normal
-1.50" : 65% of Normal
Year-To-Date: 18.85"
Jan 1 to May 27, 2026(143 of 147 days covered by obs)
NOAA Normal
17.24"
Departure from Normal
1.61" : 109% of Normal
Water Year-To-Date: 23.41"
Oct 1, 2025 to May 27, 2026(234 of 239 days covered by obs)
NOAA Normal
26.38"
Departure from Normal
-2.97" : 89% 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