Viewing Station: MO-FSA-109 : Mount Vernon 1.3 NNW
May 1, 2006 - May 19, 20266,891 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.14"
May 1-19, 2026(19 of 19 days covered by obs)
NOAA Normal
3.67"
Departure from Normal
-2.53" : 31% of Normal
Year-To-Date: 18.17"
Jan 1 to May 19, 2026(139 of 139 days covered by obs)
NOAA Normal
16.71"
Departure from Normal
1.46" : 109% of Normal
Water Year-To-Date: 23.49"
Oct 1, 2025 to May 19, 2026(231 of 231 days covered by obs)
NOAA Normal
26.64"
Departure from Normal
-3.15" : 88% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
2.29
2.36
-0.07
Feb
2.29
2.25
0.04
Mar
3.76
3.70
0.06
Apr
4.70
4.61
0.09
May
5.98
5.85
0.13
Jun
4.86
5.09
-0.23
Jul
3.98
3.70
0.28
Aug
3.29
3.30
-0.01
Sep
4.51
4.45
0.06
Oct
3.65
3.59
0.06
Nov
3.56
3.74
-0.18
Dec
2.72
2.73
-0.01
45.59
45.37
0.22