Viewing Station: OR-CC-77 : Lake Oswego 0.6 N
Dec 7, 2014 - Apr 18, 20252,501 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.00"
September 1-22, 2026(0 of 22 days covered by obs)
NOAA Normal
1.16"
Departure from Normal
-1.16" : 0% of Normal
Year-To-Date: 0.00"
Jan 1 to Sep 22, 2026(0 of 265 days covered by obs)
NOAA Normal
25.35"
Departure from Normal
-25.35" : 0% of Normal
Water Year-To-Date: 0.00"
Oct 1, 2025 to Sep 22, 2026(0 of 357 days covered by obs)
NOAA Normal
43.23"
Departure from Normal
-43.23" : 0% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
6.23
6.42
-0.19
Feb
4.56
4.75
-0.19
Mar
4.67
5.10
-0.43
Apr
3.54
3.83
-0.29
May
2.56
2.62
-0.06
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
4.13
-0.12
Nov
6.59
6.68
-0.09
Dec
7.28
7.42
-0.14
43.65
45.23
-1.58