Viewing Station: IA-SR-2 : Ames 1.5 NNE
Aug 1, 2007 - Sep 17, 20266,997 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 3.64"
September 1-17, 2026(17 of 17 days covered by obs)
NOAA Normal
2.01"
Departure from Normal
1.63" : 181% of Normal
Year-To-Date: 43.18"
Jan 1 to Sep 17, 2026(260 of 260 days covered by obs)
NOAA Normal
28.73"
Departure from Normal
14.45" : 150% of Normal
Water Year-To-Date: 49.20"
Oct 1, 2025 to Sep 17, 2026(352 of 352 days covered by obs)
NOAA Normal
34.39"
Departure from Normal
14.81" : 143% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.88
0.93
-0.05
Feb
1.04
1.14
-0.10
Mar
1.99
2.04
-0.05
Apr
3.84
3.66
0.18
May
5.03
5.07
-0.04
Jun
5.33
5.11
0.22
Jul
4.25
4.33
-0.08
Aug
4.36
4.50
-0.14
Sep
3.54
3.51
0.03
Oct
2.59
2.61
-0.02
Nov
1.75
1.83
-0.08
Dec
1.32
1.41
-0.09
35.92
36.14
-0.22