Multnomah Channel - Chapman Landing Rainfall Forecast

Today 5 Oct
No Rain
Mon 6 Oct
No Rain
Tue 7 Oct
No Rain
Wed 8 Oct
30%
Thu 9 Oct
20%
Fri 10 Oct
35%
Sat 11 Oct
55%

Multnomah Channel - Chapman Landing Rainfall Statistics

October Rainfall

Scappoose Industrial Airpark (1.9 miles)

Total Rainfall 2025
14.2in
Daily Average 2025
0.1in
Wettest Day 24 February, 2025
1in
Wet Days 2025
74/278 (27%)
Total Rainfall September
0.6in
Daily Average September
0.02in
Wettest Day 29 September, 2025
0.3in
Wet Days September
5/30 (17%)
Total Rainfall October
0.5in
Daily Average October
0.2in
Wettest Day 1 October, 2025
0.5in
Wet Days October
2/5 (40%)

Climate (2010–Present)

Scappoose Industrial Airpark (1.9 miles)

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Annual Average 2020–2024
36.7in
Monthly Average 2020–2025
3in
Daily Average 2020–2025
0.1in
Wettest Day 4 November, 2022
3.1in

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