About this river
Grande Ronde River is a 10.2 mile river near Hell Bound Sport Fishing in Idaho. Streamflow is measured at the USGS gauge Snake River near Anatone, WA (site 13334300). The National Hydrography Dataset places it at stream order 8. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1958 to 2026
Grande Ronde River typically runs highest in June, at a median 63,350 cfs, and lowest in August, at 16,700 cfs. The highest flow on record for any single day is 191,000 cfs, in 1974.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 24,000 | 19,600 to 30,900 | |
| February | 26,200 | 20,900 to 35,100 | |
| March | 31,400 | 23,000 to 43,100 | |
| April | 43,000 | 28,050 to 63,700 | |
| May | 60,500 | 45,200 to 91,000 | |
| June | 63,350 | 41,200 to 92,300 | |
| July | 24,800 | 18,900 to 32,300 | |
| August | 16,700 | 14,000 to 19,600 | |
| September | 17,650 | 14,800 to 21,900 | |
| October | 18,000 | 14,600 to 23,000 | |
| November | 17,700 | 14,900 to 23,050 | |
| December | 21,000 | 16,800 to 26,600 |
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 68 years of record. Statistics published by the US Geological Survey for Snake River near Anatone, WA (site 13334300). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
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Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Grande Ronde 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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