Viewing Station: WA-SP-22 : Nine Mile Falls 8.7 NW
Sep 7, 2009 - Sep 17, 20254,892 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.35"
September 1-17, 2025(17 of 17 days covered by obs)
NOAA Normal
0.32"
Departure from Normal
0.03" : 110% of Normal
Year-To-Date: 10.22"
Jan 1 to Sep 17, 2025(244 of 260 days covered by obs)
NOAA Normal
9.96"
Departure from Normal
0.26" : 103% of Normal
Water Year-To-Date: 19.43"
Oct 1, 2024 to Sep 17, 2025(332 of 352 days covered by obs)
NOAA Normal
15.32"
Departure from Normal
4.11" : 127% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
1.77
2.11
-0.34
Feb
1.22
1.55
-0.33
Mar
1.49
1.69
-0.20
Apr
1.30
1.26
0.04
May
1.48
1.50
-0.02
Jun
1.41
1.44
-0.03
Jul
0.51
0.51
0.00
Aug
0.46
0.38
0.08
Sep
0.56
0.57
-0.01
Oct
1.33
1.63
-0.30
Nov
1.84
2.20
-0.36
Dec
2.19
2.57
-0.38
15.56
17.41
-1.85