Viewing Station: OR-CC-100 : Lake Oswego 1.4 NNE
Nov 16, 2018 - Aug 25, 20262,807 Total Observations
View:

Climatology

Precipitation Normals Comparison

Month-To-Date: 0.00"
August 1-25, 2026(25 of 25 days covered by obs)
NOAA Normal
0.46"
Departure from Normal
-0.46" : 0% of Normal
Year-To-Date: 20.11"
Jan 1 to Aug 25, 2026(237 of 237 days covered by obs)
NOAA Normal
24.08"
Departure from Normal
-3.97" : 84% of Normal
Water Year-To-Date: 42.06"
Oct 1, 2025 to Aug 25, 2026(329 of 329 days covered by obs)
NOAA Normal
41.96"
Departure from Normal
0.10" : 100% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
6.23
6.34
-0.11
Feb
4.56
4.64
-0.08
Mar
4.67
5.00
-0.33
Apr
3.54
3.75
-0.21
May
2.56
2.59
-0.03
Jun
1.63
1.69
-0.06
Jul
0.43
0.42
0.01
Aug
0.57
0.56
0.01
Sep
1.58
1.59
-0.01
Oct
4.01
4.05
-0.04
Nov
6.59
6.61
-0.02
Dec
7.28
7.37
-0.09
43.65
44.61
-0.96