About this river
Yellowstone River is a 36.6 mile river near Yellowstone R&R River Rentals in Montana. Streamflow is measured at the USGS gauge Yellowstone River at Billings MT (site 06214500). The National Hydrography Dataset places it at stream order 8. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1929 to 2025
Yellowstone River typically runs highest in June, at a median 24,500 cfs, and lowest in January, at 2,430 cfs. The highest flow on record for any single day is 80,100 cfs, in 1997.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 2,430 | 2,000 to 2,970 | |
| February | 2,500 | 2,100 to 2,990 | |
| March | 2,810 | 2,350 to 3,420 | |
| April | 3,780 | 2,860 to 4,720 | |
| May | 10,800 | 7,500 to 16,000 | |
| June | 24,500 | 17,850 to 32,400 | |
| July | 11,700 | 7,290 to 16,900 | |
| August | 4,460 | 3,110 to 5,940 | |
| September | 3,710 | 2,655 to 4,790 | |
| October | 3,910 | 3,170 to 4,670 | |
| November | 3,570 | 3,100 to 4,065 | |
| December | 2,780 | 2,240 to 3,290 |
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 96 years of record. Statistics published by the US Geological Survey for Yellowstone River at Billings MT (site 06214500). 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 Yellowstone River's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
See every free widget you can put on your site, including live conditions and a 7 day forecast.
