Viewing Station: ID-PW-4 : American Falls 3.6 ESE
Sep 7, 2012 - Sep 18, 20263,857 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.19"
September 1-22, 2026(18 of 22 days covered by obs)
NOAA Normal
0.68"
Departure from Normal
-0.49" : 28% of Normal
Year-To-Date: 4.30"
Jan 1 to Sep 22, 2026(241 of 265 days covered by obs)
NOAA Normal
9.38"
Departure from Normal
-5.08" : 46% of Normal
Water Year-To-Date: 9.02"
Oct 1, 2025 to Sep 22, 2026(328 of 357 days covered by obs)
NOAA Normal
12.82"
Departure from Normal
-3.80" : 70% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.33
1.04
0.29
Feb
1.06
0.77
0.29
Mar
1.30
1.13
0.17
Apr
1.40
1.32
0.08
May
1.56
1.56
0.00
Jun
1.00
1.09
-0.09
Jul
0.46
0.40
0.06
Aug
0.59
0.55
0.04
Sep
0.93
0.84
0.09
Oct
1.08
1.01
0.07
Nov
1.05
0.90
0.15
Dec
1.31
0.98
0.33
13.07
11.59
1.48