Columbia River - Gull Island Rainfall Forecast

Today 27 Sep
No Rain
Mon 28 Sep
20%
Tue 29 Sep
65%
Wed 30 Sep
5%
Thu 1 Oct
5%
Fri 2 Oct
10%
Sat 3 Oct
No Rain

Columbia River - Gull Island Rainfall Statistics

September Rainfall

Southwest Washington Regional Airport (13 miles)

Total Rainfall 2026
16.1in
Daily Average 2026
0.1in
Wettest Day 13 March, 2026
1.6in
Wet Days 2026
63/270 (23%)
Total Rainfall August
0in
Daily Average August
0in
Wettest Day 1 August, 2026
0in
Wet Days August
–
Total Rainfall September
1.1in
Daily Average September
0.04in
Wettest Day 24 September, 2026
0.6in
Wet Days September
5/27 (19%)

Climate (2021–2025)

Southwest Washington Regional Airport (13 miles)

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Annual Average 2021–2025
39.7in
Monthly Average 2021–2026
3.2in
Daily Average 2021–2026
0.1in
Wettest Day 4 November, 2022
4.2in

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