Viewing Station: OR-CT-21 : Astoria 3.5 SSW
Jan 2, 2018 - Sep 20, 20262,732 Total Observations
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Climatology

Precipitation Normals Comparison

Month-To-Date: 2.45"
September 1-21, 2026(20 of 21 days covered by obs)
NOAA Normal
2.16"
Departure from Normal
0.29" : 114% of Normal
Year-To-Date: 39.94"
Jan 1 to Sep 21, 2026(237 of 264 days covered by obs)
NOAA Normal
47.81"
Departure from Normal
-7.87" : 84% of Normal
Water Year-To-Date: 75.61"
Oct 1, 2025 to Sep 21, 2026(327 of 356 days covered by obs)
NOAA Normal
80.52"
Departure from Normal
-4.91" : 94% of Normal
MonthNOAA Normals (in)PRISM Normals (in)Diff (in)
Jan
12.28
12.12
0.16
Feb
8.50
8.09
0.41
Mar
9.03
9.00
0.03
Apr
6.89
6.41
0.48
May
3.97
3.66
0.31
Jun
2.75
2.69
0.06
Jul
0.96
0.94
0.02
Aug
1.27
1.23
0.04
Sep
3.08
2.81
0.27
Oct
7.43
7.19
0.24
Nov
12.37
12.54
-0.17
Dec
12.91
12.49
0.42
81.44
79.17
2.27