Columbia River - Knappton Rainfall Forecast

Today 25 Sep
100%
Sat 26 Sep
5%
Sun 27 Sep
No Rain
Mon 28 Sep
35%
Tue 29 Sep
45%
Wed 30 Sep
30%
Thu 1 Oct
20%

Columbia River - Knappton Rainfall Statistics

September Rainfall

Astoria, Astoria Regional Airport (8.7 miles)

Total Rainfall 2026
33.6in
Daily Average 2026
0.1in
Wettest Day 11 March, 2026
1.9in
Wet Days 2026
91/268 (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
1.7in
Daily Average September
0.1in
Wettest Day 3 September, 2026
1.2in
Wet Days September
7/25 (28%)

Climate (2021–2025)

Astoria, Astoria Regional Airport (8.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

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

Get WillyWeather+ to remove ads