Columbia River - Tomahawk Island Rainfall Forecast

Today 26 Sep
No Rain
Sun 27 Sep
No Rain
Mon 28 Sep
No Rain
Tue 29 Sep
25%
Wed 30 Sep
10%
Thu 1 Oct
10%
Fri 2 Oct
5%

Columbia River - Tomahawk Island Rainfall Statistics

September Rainfall

Pearson Airfield (0.6 miles)

Total Rainfall 2026
18.1in
Daily Average 2026
0.1in
Wettest Day 12 March, 2026
1.3in
Wet Days 2026
80/269 (30%)
Total Rainfall August
0.1in
Daily Average August
0in
Wettest Day 29 August, 2026
0.1in
Wet Days August
1/31 (3%)
Total Rainfall September
0.8in
Daily Average September
0.03in
Wettest Day 2 September, 2026
0.2in
Wet Days September
7/26 (27%)

Climate (2021–2025)

Pearson Airfield (0.6 miles)

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Annual Average 2021–2025
36.4in
Monthly Average 2021–2026
3.1in
Daily Average 2021–2026
0.1in
Wettest Day 26 December, 2022
2.6in

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