Viewing Station: IA-SR-45 : Ames 2.0 WNW
Sep 6, 2020 - May 20, 20261,951 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.78"
May 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
3.25"
Departure from Normal
-0.47" : 86% of Normal
Year-To-Date: 13.24"
Jan 1 to May 20, 2026(139 of 140 days covered by obs)
NOAA Normal
11.02"
Departure from Normal
2.22" : 120% of Normal
Water Year-To-Date: 17.66"
Oct 1, 2025 to May 20, 2026(221 of 232 days covered by obs)
NOAA Normal
16.69"
Departure from Normal
0.97" : 106% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
0.88
0.91
-0.03
Feb
1.05
1.13
-0.08
Mar
1.99
2.03
-0.04
Apr
3.85
3.67
0.18
May
5.03
5.07
-0.04
Jun
5.29
5.09
0.20
Jul
4.28
4.33
-0.05
Aug
4.38
4.50
-0.12
Sep
3.54
3.50
0.04
Oct
2.59
2.61
-0.02
Nov
1.76
1.82
-0.06
Dec
1.32
1.39
-0.07
35.96
36.05
-0.09