Viewing Station: WA-WW-14 : Walla Walla 1.1 NE
May 12, 2014 - Sep 17, 20253,143 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.45"
September 1-17, 2025(16 of 17 days covered by obs)
NOAA Normal
0.37"
Departure from Normal
0.08" : 120% of Normal
Year-To-Date: 8.74"
Jan 1 to Sep 17, 2025(229 of 260 days covered by obs)
NOAA Normal
11.37"
Departure from Normal
-2.63" : 77% of Normal
Water Year-To-Date: 15.10"
Oct 1, 2024 to Sep 17, 2025(316 of 352 days covered by obs)
NOAA Normal
17.42"
Departure from Normal
-2.32" : 87% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.90
2.04
-0.14
Feb
1.64
1.58
0.06
Mar
1.92
1.95
-0.03
Apr
1.75
1.75
0.00
May
1.80
1.84
-0.04
Jun
1.25
1.27
-0.02
Jul
0.37
0.38
-0.01
Aug
0.37
0.42
-0.05
Sep
0.66
0.62
0.04
Oct
1.56
1.54
0.02
Nov
2.22
1.99
0.23
Dec
2.27
2.08
0.19
17.71
17.46
0.25