USGS Streamgage 06119600
Musselshell River near Martinsdale, MT
Musselshell River near Martinsdale, MT is USGS streamgage 06119600 in Montana, monitoring river discharge in hydrologic subbasin 10040201. It drains a watershed of about 537 square miles. Discharge records at this site go back to 2003. Typical flow runs near 52.5 cfs in July and 63 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Montana
- Drainage area
- 537 sq mi
- Gauge elevation
- 4,663 ft
- Subbasin (HUC-8)
- 10040201
- Coordinates
- 46.47696, -110.24897
- USGS site number
- 06119600
- Records begin
- 2003-04-01 (23 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 23 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 | — | 30.2 | — | |
| February | — | 20.1 | — | |
| March | 19.5 | 33.7 | 84.9 | |
| April | 23.6 | 63 | 302.9 | |
| May | 75.2 | 222.9 | 932.4 | |
| June | 67.6 | 191.3 | 772.6 | |
| July | 14.5 | 52.5 | 219.6 | |
| August | 6.1 | 24.9 | 78.3 | |
| September | 8.4 | 20.8 | 78.7 | |
| October | 16.8 | 33.5 | 87.2 | |
| November | — | 49.9 | — | |
| December | — | 40.7 | — |
All values in cubic feet per second (cfs).