Viewing Station: MO-SS-47 : O'Fallon 2.1 SSE
Mar 13, 2021 - Sep 15, 20262,014 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 0.80"
September 1-15, 2026(15 of 15 days covered by obs)
NOAA Normal
1.66"
Departure from Normal
-0.86" : 48% of Normal
Year-To-Date: 32.15"
Jan 1 to Sep 15, 2026(258 of 258 days covered by obs)
NOAA Normal
31.30"
Departure from Normal
0.85" : 103% of Normal
Water Year-To-Date: 38.06"
Oct 1, 2025 to Sep 15, 2026(350 of 350 days covered by obs)
NOAA Normal
40.43"
Departure from Normal
-2.37" : 94% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.48
2.56
-0.08
Feb
2.22
2.37
-0.15
Mar
3.52
3.51
0.01
Apr
4.70
4.73
-0.03
May
4.96
5.05
-0.09
Jun
4.43
4.48
-0.05
Jul
3.70
3.88
-0.18
Aug
3.63
3.54
0.09
Sep
3.31
3.25
0.06
Oct
3.16
3.25
-0.09
Nov
3.41
3.47
-0.06
Dec
2.57
2.72
-0.15
42.09
42.81
-0.72