Viewing Station: ID-AD-21 : Boise City 6.1 SE
Jul 10, 2010 - Sep 16, 20255,435 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.06"
September 1-17, 2025(16 of 17 days covered by obs)
NOAA Normal
0.25"
Departure from Normal
-0.19" : 24% of Normal
Year-To-Date: 7.95"
Jan 1 to Sep 17, 2025(259 of 260 days covered by obs)
NOAA Normal
8.50"
Departure from Normal
-0.55" : 94% of Normal
Water Year-To-Date: 12.18"
Oct 1, 2024 to Sep 17, 2025(351 of 352 days covered by obs)
NOAA Normal
12.54"
Departure from Normal
-0.36" : 97% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.64
1.65
-0.01
Feb
1.12
1.16
-0.04
Mar
1.43
1.50
-0.07
Apr
1.36
1.33
0.03
May
1.49
1.65
-0.16
Jun
0.81
0.94
-0.13
Jul
0.21
0.23
-0.02
Aug
0.19
0.21
-0.02
Sep
0.44
0.44
0.00
Oct
0.89
0.90
-0.01
Nov
1.36
1.28
0.08
Dec
1.79
1.81
-0.02
12.73
13.10
-0.37