Lake Wallula Rainfall Forecast
- 25%
- 30%
- 20%
- No Rain
- No Rain
- 10%
- 15%
Lake Wallula Rainfall Statistics
September Rainfall
Hermiston, Hermiston Municipal Airport (7.5 miles)
Total Rainfall September
0.2inDaily Average September
0.1inWettest Day 2 September, 2026
0.1inWet Days September
2/5 (40%)
Climate (2021–2025)
Hermiston, Hermiston Municipal Airport (7.5 miles)
Annual Average 2021–2025
9.4inMonthly Average 2021–2026
0.8inDaily Average 2021–2026
0.03inWettest Day 5 May, 2024
1.1in