Viewing Station: OR-MT-176 : Portland 4.2 SW
Jan 16, 2026 - Sep 21, 2026195 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 0.80"
September 1-21, 2026(21 of 21 days covered by obs)
NOAA Normal
1.07"
Departure from Normal
-0.27" : 75% of Normal
Year-To-Date: 11.47"
Jan 1 to Sep 21, 2026(212 of 264 days covered by obs)
NOAA Normal
24.65"
Departure from Normal
-13.18" : 47% of Normal
Water Year-To-Date: 11.47"
Oct 1, 2025 to Sep 21, 2026(212 of 356 days covered by obs)
NOAA Normal
42.17"
Departure from Normal
-30.70" : 27% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
6.13
6.44
-0.31
Feb
4.56
5.01
-0.45
Mar
4.54
5.29
-0.75
Apr
3.35
3.92
-0.57
May
2.45
2.64
-0.19
Jun
1.58
1.77
-0.19
Jul
0.42
0.45
-0.03
Aug
0.55
0.56
-0.01
Sep
1.53
1.62
-0.09
Oct
3.81
4.27
-0.46
Nov
6.48
6.81
-0.33
Dec
7.23
7.73
-0.50
42.63
46.51
-3.88