Viewing Station: OR-CC-100 : Lake Oswego 1.4 NNE
Nov 16, 2018 - Apr 14, 20262,674 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 1.45"
April 1-14, 2026(14 of 14 days covered by obs)
NOAA Normal
1.65"
Departure from Normal
-0.20" : 88% of Normal
Year-To-Date: 15.42"
Jan 1 to Apr 14, 2026(104 of 104 days covered by obs)
NOAA Normal
17.11"
Departure from Normal
-1.69" : 90% of Normal
Water Year-To-Date: 37.37"
Oct 1, 2025 to Apr 14, 2026(196 of 196 days covered by obs)
NOAA Normal
34.99"
Departure from Normal
2.38" : 107% 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