Happy Valley Rainfall Forecast

Today 5 Oct
No Rain
Tue 6 Oct
No Rain
Wed 7 Oct
No Rain
Thu 8 Oct
No Rain
Fri 9 Oct
20%
Sat 10 Oct
10%
Sun 11 Oct
5%

Happy Valley Rainfall Statistics

October Rainfall

Portland, Portland-Troutdale Airport (8.7 miles)

Total Rainfall 2026
20.3 in
Daily Average 2026
0.1 in
Wettest Day 12 March, 2026
1.8 in
Wet Days 2026
80/278 (29%)
Total Rainfall September
1.2 in
Daily Average September
0.04 in
Wettest Day 6 September, 2026
0.4 in
Wet Days September
7/30 (23%)
Total Rainfall October
0 in
Daily Average October
0 in
Wettest Day 1 October, 2026
0 in
Wet Days October
–

Climate (2021–2025)

Portland, Portland-Troutdale Airport (8.7 miles)

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Annual Average 2021–2025
39.7 in
Monthly Average 2021–2026
3.4 in
Daily Average 2021–2026
0.1 in
Wettest Day 18 December, 2025
2.3 in

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