Viewing Station: OR-MT-58 : Portland 2.1 E
May 12, 2013 - Sep 20, 20263,523 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 0.85"
September 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
1.05"
Departure from Normal
-0.20" : 81% of Normal
Year-To-Date: 15.82"
Jan 1 to Sep 20, 2026(253 of 263 days covered by obs)
NOAA Normal
24.53"
Departure from Normal
-8.71" : 64% of Normal
Water Year-To-Date: 31.23"
Oct 1, 2025 to Sep 20, 2026(342 of 355 days covered by obs)
NOAA Normal
41.43"
Departure from Normal
-10.20" : 75% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
5.88
6.28
-0.40
Feb
4.29
4.54
-0.25
Mar
4.51
4.89
-0.38
Apr
3.43
3.67
-0.24
May
2.60
2.67
-0.07
Jun
1.72
1.75
-0.03
Jul
0.47
0.46
0.01
Aug
0.58
0.55
0.03
Sep
1.58
1.58
0.00
Oct
3.85
3.91
-0.06
Nov
6.25
6.45
-0.20
Dec
6.80
7.22
-0.42
41.96
43.97
-2.01