Viewing Station: MO-FSA-149 : Alton 1.7 NNW
May 1, 2006 - May 19, 20266,215 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.51"
May 1-19, 2026(19 of 19 days covered by obs)
NOAA Normal
3.46"
Departure from Normal
-2.95" : 15% of Normal
Year-To-Date: 10.93"
Jan 1 to May 19, 2026(139 of 139 days covered by obs)
NOAA Normal
19.53"
Departure from Normal
-8.60" : 56% of Normal
Water Year-To-Date: 12.28"
Oct 1, 2025 to May 19, 2026(162 of 231 days covered by obs)
NOAA Normal
31.23"
Departure from Normal
-18.95" : 39% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
3.04
3.00
0.04
Feb
3.31
3.13
0.18
Mar
4.57
4.38
0.19
Apr
5.15
5.27
-0.12
May
5.64
5.45
0.19
Jun
3.58
3.67
-0.09
Jul
4.00
4.02
-0.02
Aug
3.72
3.57
0.15
Sep
3.69
3.75
-0.06
Oct
3.66
3.69
-0.03
Nov
4.57
4.49
0.08
Dec
3.47
3.45
0.02
48.40
47.87
0.53