Viewing Station: MO-SS-42 : O'Fallon 2.6 NNE
Mar 14, 2020 - Feb 18, 20261,496 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.25"
February 1-18, 2026(7 of 18 days covered by obs)
NOAA Normal
1.41"
Departure from Normal
-0.16" : 89% of Normal
Year-To-Date: 1.61"
Jan 1 to Feb 18, 2026(23 of 49 days covered by obs)
NOAA Normal
3.86"
Departure from Normal
-2.25" : 42% of Normal
Water Year-To-Date: 4.80"
Oct 1, 2025 to Feb 18, 2026(85 of 141 days covered by obs)
NOAA Normal
12.91"
Departure from Normal
-8.11" : 37% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.45
2.48
-0.03
Feb
2.19
2.27
-0.08
Mar
3.47
3.37
0.10
Apr
4.66
4.60
0.06
May
4.95
5.03
-0.08
Jun
4.45
4.44
0.01
Jul
3.73
3.90
-0.17
Aug
3.63
3.52
0.11
Sep
3.31
3.24
0.07
Oct
3.13
3.22
-0.09
Nov
3.37
3.41
-0.04
Dec
2.55
2.63
-0.08
41.89
42.11
-0.22