USGS Streamgage 06130500
Musselshell River at Mosby, MT
Musselshell River at Mosby, MT is USGS streamgage 06130500 in Montana, monitoring river discharge in hydrologic subbasin 10040205. It drains a watershed of about 7,784 square miles. Discharge records at this site go back to 1929. Typical flow runs near 114.9 cfs in July and 135.4 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Montana
- Drainage area
- 7,784 sq mi
- Gauge elevation
- 2,500 ft
- Subbasin (HUC-8)
- 10040205
- Coordinates
- 46.99469, -107.88916
- USGS site number
- 06130500
- Records begin
- 1929-05-01 (97 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 96 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 | 0.9 | 50.4 | 200.7 | |
| February | 4.5 | 80.4 | 356.8 | |
| March | 29.2 | 165.5 | 948.4 | |
| April | 15.2 | 135.4 | 790.7 | |
| May | 5.1 | 203 | 1,543.9 | |
| June | 15.4 | 338.8 | 2,678 | |
| July | 0.4 | 114.9 | 986.5 | |
| August | 0 | 61.6 | 293.5 | |
| September | 0 | 64.4 | 263.3 | |
| October | 0 | 66.9 | 219.3 | |
| November | 0.1 | 66.9 | 208.9 | |
| December | 0.5 | 54.5 | 192 |
All values in cubic feet per second (cfs).
Other gauges in this region
- N F Milk River ab St. Mary canal near Browning, MT
- Milk River at Eastern Crossing of Int Bndry
- Lodge Creek near Chinook, MT
- Battle Creek near Chinook, MT
- Rock Creek below Horse Creek near int'l boundary
- Yellowstone River at Billings, MT
- Bighorn River at Basin, WY
- North Fork Shoshone River at Wapiti, WY