USGS Streamgage 06017000
Beaverhead River at Dillon, MT
Beaverhead River at Dillon, MT is USGS streamgage 06017000 in Montana, monitoring river discharge in hydrologic subbasin 10020002. It drains a watershed of about 2,892 square miles. Discharge records at this site go back to 1950. Typical flow runs near 169.7 cfs in July and 170.5 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Montana
- Drainage area
- 2,892 sq mi
- Gauge elevation
- 5,098 ft
- Subbasin (HUC-8)
- 10020002
- Coordinates
- 45.21838, -112.65533
- USGS site number
- 06017000
- Records begin
- 1950-10-01 (76 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 75 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 233.2 | 386.1 | 458 | |
| February | 219 | 385.9 | 535.7 | |
| March | 140.8 | 244.7 | 475.3 | |
| April | 83.9 | 170.5 | 570 | |
| May | 87 | 142.4 | 515.9 | |
| June | 98.5 | 168.5 | 575.7 | |
| July | 108 | 169.7 | 393.7 | |
| August | 113 | 163 | 360.9 | |
| September | 81.8 | 140.7 | 516.6 | |
| October | 95.1 | 152.1 | 523.9 | |
| November | 225.4 | 426.6 | 668.8 | |
| December | 232.5 | 416.5 | 586.4 |
All values in cubic feet per second (cfs).