Viewing Station: OR-MT-99 : Portland 5.8 S
May 11, 2017 - Jul 15, 20252,090 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.00"
July 1-16, 2025(15 of 16 days covered by obs)
NOAA Normal
0.22"
Departure from Normal
-0.22" : 0% of Normal
Year-To-Date: 20.22"
Jan 1 to Jul 16, 2025(191 of 197 days covered by obs)
NOAA Normal
23.41"
Departure from Normal
-3.19" : 86% of Normal
Water Year-To-Date: 37.91"
Oct 1, 2024 to Jul 16, 2025(283 of 289 days covered by obs)
NOAA Normal
41.29"
Departure from Normal
-3.38" : 92% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
6.23
6.43
-0.20
Feb
4.56
4.81
-0.25
Mar
4.67
5.17
-0.50
Apr
3.54
3.81
-0.27
May
2.56
2.63
-0.07
Jun
1.63
1.70
-0.07
Jul
0.43
0.42
0.01
Aug
0.57
0.56
0.01
Sep
1.58
1.60
-0.02
Oct
4.01
4.11
-0.10
Nov
6.59
6.66
-0.07
Dec
7.28
7.47
-0.19
43.65
45.37
-1.72