About this river
Lower West Branch Priest River is a 12.5 mile river near Action Water Sports in Idaho. Streamflow is measured at the USGS gauge Priest River near Priest River, ID (site 12395000). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1950 to 2026
Lower West Branch Priest River typically runs highest in May, at a median 4,790 cfs, and lowest in September, at 306 cfs. The highest flow on record for any single day is 10,700 cfs, in 1997.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 841 | 590 to 1,080 | |
| February | 865 | 605 to 1,160 | |
| March | 1,170 | 846 to 1,670 | |
| April | 2,660 | 2,030 to 3,245 | |
| May | 4,790 | 3,640 to 5,930 | |
| June | 3,970 | 2,265 to 5,775 | |
| July | 974 | 520 to 1,440 | |
| August | 392 | 273 to 507 | |
| September | 306 | 220 to 419 | |
| October | 1,440 | 421 to 1,940 | |
| November | 1,090 | 858 to 1,450 | |
| December | 916 | 613 to 1,260 |
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 76 years of record. Statistics published by the US Geological Survey for Priest River near Priest River, ID (site 12395000). 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 Lower West Branch Priest 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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