Viewing Station: OR-MT-160 : Portland 3.7 SSW
Jan 1, 2024 - May 30, 2025412 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.26"
May 1-30, 2025(28 of 30 days covered by obs)
NOAA Normal
2.37"
Departure from Normal
-0.11" : 95% of Normal
Year-To-Date: 18.07"
Jan 1 to May 30, 2025(146 of 150 days covered by obs)
NOAA Normal
20.95"
Departure from Normal
-2.88" : 86% of Normal
Water Year-To-Date: 35.06"
Oct 1, 2024 to May 30, 2025(233 of 242 days covered by obs)
NOAA Normal
38.47"
Departure from Normal
-3.41" : 91% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
6.13
6.34
-0.21
Feb
4.56
4.83
-0.27
Mar
4.54
5.05
-0.51
Apr
3.35
3.72
-0.37
May
2.45
2.61
-0.16
Jun
1.58
1.67
-0.09
Jul
0.42
0.43
-0.01
Aug
0.55
0.54
0.01
Sep
1.53
1.56
-0.03
Oct
3.81
4.01
-0.20
Nov
6.48
6.61
-0.13
Dec
7.23
7.51
-0.28
42.63
44.88
-2.25