About this river
Snake River is an 11.2 mile river near Salmon River Tours in Idaho. Streamflow is measured at USGS gauge site 13290450. The National Hydrography Dataset places it at stream order 9. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1966 to 2025
Snake River typically runs highest in April, at a median 22,850 cfs, and lowest in November, at 9,820 cfs. The highest flow on record for any single day is 98,100 cfs, in 1997.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 17,800 | 13,700 to 23,800 | |
| February | 18,900 | 13,900 to 27,100 | |
| March | 20,100 | 14,000 to 30,000 | |
| April | 22,850 | 12,850 to 41,650 | |
| May | 20,600 | 12,900 to 32,900 | |
| June | 19,200 | 11,700 to 32,350 | |
| July | 12,900 | 9,830 to 16,500 | |
| August | 10,500 | 9,180 to 12,800 | |
| September | 12,800 | 10,200 to 16,150 | |
| October | 10,900 | 8,800 to 16,900 | |
| November | 9,820 | 8,875 to 16,100 | |
| December | 14,300 | 11,200 to 19,800 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 60 years of record. Statistics published by the US Geological Survey for USGS gauge 13290450 (site 13290450). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Snake River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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