Past date
Middle Fork of the Salmon River, May 31, 2013
River flow3.65 ft
Actual · 05/31/2013
3.65 ft; discharge 3,060 cfs
USGS daily
05/31 average
5.11 ft; discharge 5,864 cfs
20-year USGS
Below average by 1.46 ft.
Weather & snowStanley, ID · 54° / 21°F · 0.01" · Banner 312 · Banner Summit 312, 05/31 average: 84% of peak melted · 4.7 in SWE
Stanley, ID
That day · 2013
54° / 21°F · 0.01"
05/31 average
65° / 30°F · 0.02"
19 years
Middle Fork Lodge
Lodge averages are for future dates only (station ended 2013).
Salmon, ID
That day · 2013
62° / 41°F · 0.00"
05/31 average
73° / 43°F · 0.03"
19 years
Banner Summit 312
Banner Summit 312, 05/31 average: 84% of peak melted · 4.7 in SWE
Deadwood Summit 439
Deadwood Summit 439, 05/31 average: 59% of peak melted · 18.5 in SWE
Lottery odds8.89% first-choice proxy
2025 first-choice proxy · 05/31 launch
8.89%
5.0× season avg 1.79% (+7.10 pts)
First-choice applications
45
Private launches available
4
Season-wide 2025 success rate
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%
Fridays: 2.17%, about 1 in 46
Odds are launches ÷ first-choice applications (2025 USFS). That is date competition, not a personal win rate.