Viewing Station: MO-LW-25 : Mount Vernon 0.2 E
May 15, 2011 - Sep 17, 20254,814 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.49"
September 1-18, 2025(15 of 18 days covered by obs)
NOAA Normal
2.71"
Departure from Normal
-2.22" : 18% of Normal
Year-To-Date: 32.04"
Jan 1 to Sep 18, 2025(222 of 261 days covered by obs)
NOAA Normal
33.86"
Departure from Normal
-1.82" : 95% of Normal
Water Year-To-Date: 42.91"
Oct 1, 2024 to Sep 18, 2025(313 of 353 days covered by obs)
NOAA Normal
43.79"
Departure from Normal
-0.88" : 98% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.29
2.38
-0.09
Feb
2.29
2.27
0.02
Mar
3.76
3.72
0.04
Apr
4.70
4.60
0.10
May
5.98
5.84
0.14
Jun
4.86
5.09
-0.23
Jul
3.98
3.70
0.28
Aug
3.29
3.29
0.00
Sep
4.51
4.47
0.04
Oct
3.65
3.59
0.06
Nov
3.56
3.75
-0.19
Dec
2.72
2.74
-0.02
45.59
45.44
0.15