Columbia River - Cathlamet Channel Rainfall Forecast

Today 26 Sep
No Rain
Sun 27 Sep
No Rain
Mon 28 Sep
10%
Tue 29 Sep
55%
Wed 30 Sep
10%
Thu 1 Oct
20%
Fri 2 Oct
5%

Columbia River - Cathlamet Channel Rainfall Statistics

September Rainfall

Astoria, Astoria Regional Airport (23.6 miles)

Total Rainfall 2026
34.1in
Daily Average 2026
0.1in
Wettest Day 11 March, 2026
1.9in
Wet Days 2026
92/269 (34%)
Total Rainfall August
0.5in
Daily Average August
0.02in
Wettest Day 1 August, 2026
0.3in
Wet Days August
6/31 (19%)
Total Rainfall September
2.3in
Daily Average September
0.1in
Wettest Day 3 September, 2026
1.2in
Wet Days September
8/26 (31%)

Climate (2021–2025)

Astoria, Astoria Regional Airport (23.6 miles)

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Annual Average 2021–2025
65.5in
Monthly Average 2021–2026
5.3in
Daily Average 2021–2026
0.2in
Wettest Day 6 January, 2022
5.1in

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