Viewing Station: OR-WS-114 : Portland 5.2 WSW
May 27, 2016 - Dec 13, 20252,463 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 4.53"
December 1-13, 2025(13 of 13 days covered by obs)
NOAA Normal
3.15"
Departure from Normal
1.38" : 144% of Normal
Year-To-Date: 29.73"
Jan 1 to Dec 13, 2025(306 of 347 days covered by obs)
NOAA Normal
39.30"
Departure from Normal
-9.57" : 76% of Normal
Water Year-To-Date: 10.76"
Oct 1, 2025 to Dec 13, 2025(49 of 74 days covered by obs)
NOAA Normal
13.63"
Departure from Normal
-2.87" : 79% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
6.40
5.98
0.42
Feb
4.71
4.49
0.22
Mar
4.68
4.56
0.12
Apr
3.35
3.45
-0.10
May
2.43
2.44
-0.01
Jun
1.58
1.61
-0.03
Jul
0.41
0.44
-0.03
Aug
0.56
0.49
0.07
Sep
1.55
1.48
0.07
Oct
3.83
3.75
0.08
Nov
6.65
6.31
0.34
Dec
7.50
7.15
0.35
43.65
42.15
1.50