Past date
Middle Fork of the Salmon River, May 21, 2020
River flow4.58 ft
Actual · 05/21/2020
4.58 ft; discharge 4,770 cfs
USGS daily
05/21 average
5.31 ft; discharge 6,899 cfs
20-year USGS
Below average by 0.73 ft.
Weather & snowStanley, ID · 47° / 34°F · 0.09" · Banner 312 · Banner Summit 312, 05/21 average: 68% of peak melted · 9.5 in SWE
Stanley, ID
That day · 2020
47° / 34°F · 0.09"
05/21 average
58° / 29°F · 0.04"
17 years
Middle Fork Lodge
Lodge averages are for future dates only (station ended 2013).
Salmon, ID
That day · 2020
60° / 45°F · 0.05"
05/21 average
67° / 41°F · 0.04"
20 years
Banner Summit 312
Banner Summit 312, 05/21 average: 68% of peak melted · 9.5 in SWE
Deadwood Summit 439
Deadwood Summit 439, 05/21 average: 40% of peak melted · 26.6 in SWE
Lottery oddsOutside the May 28–Sep 3 lottery season. Season-wide 2025: 1.79%.
2025 lottery
Outside the May 28–Sep 3 lottery season. 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%
Thursdays: 2.10%, about 1 in 48
Odds are launches ÷ first-choice applications (2025 USFS). That is date competition, not a personal win rate.