Willapa River - Mailboat Slough Entrance Rainfall Forecast

Today 3 Sep
15%
Thu 4 Sep
10%
Fri 5 Sep
20%
Sat 6 Sep
40%
Sun 7 Sep
25%
Mon 8 Sep
45%
Tue 9 Sep
60%

Willapa River - Mailboat Slough Entrance Rainfall Statistics

September Rainfall

Hoquiam, Bowerman Airport (19.9 miles)

Total Rainfall 2025
29.2in
Daily Average 2025
0.1in
Wettest Day 22 February, 2025
1.7in
Wet Days 2025
97/246 (39%)
Total Rainfall August
2.1in
Daily Average August
0.1in
Wettest Day 15 August, 2025
1.3in
Wet Days August
7/31 (23%)
Total Rainfall September
0in
Daily Average September
0in
Wettest Day 1 September, 2025
0in
Wet Days September
–

Climate (2010–Present)

Hoquiam, Bowerman Airport (19.9 miles)

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Annual Average 2020–2024
68.9in
Monthly Average 2020–2025
5.5in
Daily Average 2020–2025
0.2in
Wettest Day 6 January, 2022
5.8in

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