Viewing Station: OR-WS-187 : Forest Grove 1.6 NNW
May 11, 2026 - Sep 22, 2026134 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.13"
September 1-22, 2026(22 of 22 days covered by obs)
NOAA Normal
0.98"
Departure from Normal
0.15" : 115% of Normal
Year-To-Date: 3.82"
Jan 1 to Sep 22, 2026(134 of 265 days covered by obs)
NOAA Normal
25.46"
Departure from Normal
-21.64" : 15% of Normal
Water Year-To-Date: 3.82"
Oct 1, 2025 to Sep 22, 2026(134 of 357 days covered by obs)
NOAA Normal
44.10"
Departure from Normal
-40.28" : 9% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
7.05
6.99
0.06
Feb
5.07
5.05
0.02
Mar
4.87
4.79
0.08
Apr
3.25
3.23
0.02
May
2.11
2.06
0.05
Jun
1.31
1.28
0.03
Jul
0.33
0.30
0.03
Aug
0.49
0.46
0.03
Sep
1.34
1.28
0.06
Oct
3.55
3.55
0.00
Nov
6.73
6.66
0.07
Dec
8.36
8.29
0.07
44.46
43.94
0.52