Larch Mountain Rainfall Forecast
- 85%
- 5%
- No Rain
- 25%
- 15%
- 15%
- 20%
Larch Mountain Rainfall Statistics
September Rainfall
Portland, Portland-Troutdale Airport (14.9 miles)
Total Rainfall September
0.1inDaily Average September
0.01inWettest Day 5 September, 2025
0.1inWet Days September
1/14 (7%)
Climate (2010–Present)
Portland, Portland-Troutdale Airport (14.9 miles)
Annual Average 2020–2024
38.9inMonthly Average 2020–2025
3.2inDaily Average 2020–2025
0.1inWettest Day 10 June, 2022
2.1in