Multnomah Channel - Johnson Landing Rainfall Forecast

Today 18 May
No Rain
Tue 19 May
No Rain
Wed 20 May
No Rain
Thu 21 May
No Rain
Fri 22 May
No Rain
Sat 23 May
No Rain
Sun 24 May
No Rain

Multnomah Channel - Johnson Landing Rainfall Statistics

May Rainfall

Scappoose Industrial Airpark (2.5 miles)

Total Rainfall 2026
12.9in
Daily Average 2026
0.1in
Wettest Day 11 March, 2026
1.4in
Wet Days 2026
52/138 (38%)
Total Rainfall April
2.3in
Daily Average April
0.1in
Wettest Day 10 April, 2026
0.6in
Wet Days April
10/30 (33%)
Total Rainfall May
0.2in
Daily Average May
0.02in
Wettest Day 14 May, 2026
0.1in
Wet Days May
3/18 (17%)

Climate (2010–Present)

Scappoose Industrial Airpark (2.5 miles)

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Annual Average 2021–2025
36.1in
Monthly Average 2021–2026
3in
Daily Average 2021–2026
0.1in
Wettest Day 4 November, 2022
3.1in

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