Viewing Station: ID-AD-9 : Boise 2.1 NNE
Apr 2, 2009 - Sep 15, 20256,243 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.16"
September 1-16, 2025(15 of 16 days covered by obs)
NOAA Normal
0.26"
Departure from Normal
-0.10" : 61% of Normal
Year-To-Date: 9.45"
Jan 1 to Sep 16, 2025(257 of 259 days covered by obs)
NOAA Normal
9.62"
Departure from Normal
-0.17" : 98% of Normal
Water Year-To-Date: 14.44"
Oct 1, 2024 to Sep 16, 2025(349 of 351 days covered by obs)
NOAA Normal
14.28"
Departure from Normal
0.16" : 101% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.91
1.67
0.24
Feb
1.35
1.16
0.19
Mar
1.60
1.55
0.05
Apr
1.55
1.31
0.24
May
1.60
1.64
-0.04
Jun
0.90
0.95
-0.05
Jul
0.25
0.29
-0.04
Aug
0.20
0.21
-0.01
Sep
0.49
0.42
0.07
Oct
1.01
0.89
0.12
Nov
1.58
1.37
0.21
Dec
2.07
1.85
0.22
14.51
13.31
1.20