Viewing Station: OR-MT-155 : Portland 3.8 SE
Apr 18, 2023 - Aug 26, 2025809 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.00"
September 1-3, 2025(0 of 3 days covered by obs)
NOAA Normal
0.16"
Departure from Normal
-0.16" : 0% of Normal
Year-To-Date: 19.83"
Jan 1 to Sep 3, 2025(238 of 246 days covered by obs)
NOAA Normal
23.64"
Departure from Normal
-3.81" : 84% of Normal
Water Year-To-Date: 37.89"
Oct 1, 2024 to Sep 3, 2025(330 of 338 days covered by obs)
NOAA Normal
40.54"
Departure from Normal
-2.65" : 93% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
5.88
6.31
-0.43
Feb
4.29
4.54
-0.25
Mar
4.51
4.91
-0.40
Apr
3.43
3.73
-0.30
May
2.60
2.69
-0.09
Jun
1.72
1.75
-0.03
Jul
0.47
0.47
0.00
Aug
0.58
0.58
0.00
Sep
1.58
1.56
0.02
Oct
3.85
3.97
-0.12
Nov
6.25
6.44
-0.19
Dec
6.80
7.22
-0.42
41.96
44.17
-2.21