Past date
Middle Fork of the Salmon River, August 31, 2020
River flow1.68 ft
Actual · 08/31/2020
1.68 ft; discharge 656 cfs
USGS daily
08/31 average
1.73 ft; discharge 667 cfs
20-year USGS
Below average by 0.05 ft.
Weather & snowStanley, ID · 70° / 30°F · 0.00" · Banner 312 · Banner Summit 312, 08/31 average: 100% of peak melted · 0.0 in SWE
Stanley, ID
That day · 2020
70° / 30°F · 0.00"
08/31 average
76° / 31°F · 0.01"
18 years
Middle Fork Lodge
Lodge averages are for future dates only (station ended 2013).
Salmon, ID
That day · 2020
73° / 45°F · 0.00"
08/31 average
82° / 46°F · 0.06"
20 years
Banner Summit 312
Banner Summit 312, 08/31 average: 100% of peak melted · 0.0 in SWE
Deadwood Summit 439
Deadwood Summit 439, 08/31 average: 100% of peak melted · 0.0 in SWE
Lottery oddsNo 2025 data for this launch date. Season-wide 2025: 1.79%.
2025 lottery
No 2025 data for this launch date. Season-wide 2025: 1.79%.
Day-of-week context (2025)
Days with the best odds: Saturday 2.81%, Friday 2.17%
Days with the worst odds: Monday 1.05%, Tuesday 1.54%
Mondays: 1.05%, about 1 in 95
Odds are launches ÷ first-choice applications (2025 USFS). That is date competition, not a personal win rate.