Viewing Station: MO-SS-70 : O'Fallon 0.9 NNW
Apr 10, 2026 - May 16, 202637 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.01"
May 1-16, 2026(16 of 16 days covered by obs)
NOAA Normal
2.55"
Departure from Normal
-0.54" : 79% of Normal
Year-To-Date: 6.30"
Jan 1 to May 16, 2026(37 of 136 days covered by obs)
NOAA Normal
15.33"
Departure from Normal
-9.03" : 41% of Normal
Water Year-To-Date: 6.30"
Oct 1, 2025 to May 16, 2026(37 of 228 days covered by obs)
NOAA Normal
24.37"
Departure from Normal
-18.07" : 26% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.45
2.51
-0.06
Feb
2.19
2.30
-0.11
Mar
3.48
3.41
0.07
Apr
4.66
4.63
0.03
May
4.94
5.04
-0.10
Jun
4.44
4.46
-0.02
Jul
3.71
3.90
-0.19
Aug
3.64
3.53
0.11
Sep
3.33
3.26
0.07
Oct
3.13
3.23
-0.10
Nov
3.37
3.43
-0.06
Dec
2.54
2.65
-0.11
41.88
42.35
-0.47