Viewing Station: OR-MT-142 : Portland 5.2 E
Oct 12, 2021 - Sep 2, 20251,145 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.00"
September 1-3, 2025(2 of 3 days covered by obs)
NOAA Normal
0.17"
Departure from Normal
-0.17" : 0% of Normal
Year-To-Date: 21.03"
Jan 1 to Sep 3, 2025(245 of 246 days covered by obs)
NOAA Normal
24.47"
Departure from Normal
-3.44" : 86% of Normal
Water Year-To-Date: 39.99"
Oct 1, 2024 to Sep 3, 2025(337 of 338 days covered by obs)
NOAA Normal
41.47"
Departure from Normal
-1.48" : 96% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
5.93
6.38
-0.45
Feb
4.40
4.65
-0.25
Mar
4.63
5.08
-0.45
Apr
3.51
3.73
-0.22
May
2.76
2.77
-0.01
Jun
1.92
1.94
-0.02
Jul
0.52
0.52
0.00
Aug
0.63
0.60
0.03
Sep
1.67
1.62
0.05
Oct
3.95
4.05
-0.10
Nov
6.30
6.40
-0.10
Dec
6.75
7.16
-0.41
42.97
44.90
-1.93