Viewing Station: OR-CC-118 : Milwaukie 1.6 SW
Aug 18, 2022 - Sep 20, 20261,439 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.15"
September 1-20, 2026(20 of 20 days covered by obs)
NOAA Normal
0.99"
Departure from Normal
0.16" : 116% of Normal
Year-To-Date: 19.87"
Jan 1 to Sep 20, 2026(263 of 263 days covered by obs)
NOAA Normal
23.50"
Departure from Normal
-3.63" : 85% of Normal
Water Year-To-Date: 40.18"
Oct 1, 2025 to Sep 20, 2026(355 of 355 days covered by obs)
NOAA Normal
40.05"
Departure from Normal
0.13" : 100% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
5.73
6.14
-0.41
Feb
4.21
4.35
-0.14
Mar
4.32
4.77
-0.45
Apr
3.33
3.60
-0.27
May
2.43
2.50
-0.07
Jun
1.54
1.67
-0.13
Jul
0.42
0.43
-0.01
Aug
0.53
0.57
-0.04
Sep
1.49
1.54
-0.05
Oct
3.70
3.83
-0.13
Nov
6.11
6.38
-0.27
Dec
6.74
7.16
-0.42
40.55
42.94
-2.39