Viewing Station: OR-YM-8 : Grand Ronde 3.5 NW
Jan 1, 2013 - Sep 20, 20264,969 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.06"
September 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
1.96"
Departure from Normal
0.10" : 105% of Normal
Year-To-Date: 30.90"
Jan 1 to Sep 20, 2026(262 of 263 days covered by obs)
NOAA Normal
52.72"
Departure from Normal
-21.82" : 59% of Normal
Water Year-To-Date: 66.79"
Oct 1, 2025 to Sep 20, 2026(354 of 355 days covered by obs)
NOAA Normal
89.20"
Departure from Normal
-22.41" : 75% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
13.63
11.16
2.47
Feb
10.04
8.43
1.61
Mar
10.24
7.82
2.42
Apr
7.70
5.70
2.00
May
4.45
3.17
1.28
Jun
2.95
1.99
0.96
Jul
0.74
0.42
0.32
Aug
1.01
0.59
0.42
Sep
2.94
1.97
0.97
Oct
8.01
5.92
2.09
Nov
13.59
10.94
2.65
Dec
14.88
13.56
1.32
90.18
71.67
18.51