Viewing Station: IA-SR-2 : Ames 1.5 NNE
Aug 1, 2007 - May 20, 20266,877 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.62"
May 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
3.25"
Departure from Normal
-0.63" : 81% of Normal
Year-To-Date: 13.95"
Jan 1 to May 20, 2026(140 of 140 days covered by obs)
NOAA Normal
11.00"
Departure from Normal
2.95" : 127% of Normal
Water Year-To-Date: 19.97"
Oct 1, 2025 to May 20, 2026(232 of 232 days covered by obs)
NOAA Normal
16.66"
Departure from Normal
3.31" : 120% 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