USGS Streamgage 06089000
Sun River near Vaughn, MT
Sun River near Vaughn, MT is USGS streamgage 06089000 in Montana, monitoring river discharge in hydrologic subbasin 10030104. It drains a watershed of about 1,774 square miles. Discharge records at this site go back to 1934. Typical flow runs near 558.9 cfs in July and 293.8 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Montana
- Drainage area
- 1,774 sq mi
- Gauge elevation
- 3,339 ft
- Subbasin (HUC-8)
- 10030104
- Coordinates
- 47.52578, -111.51104
- USGS site number
- 06089000
- Records begin
- 1934-04-01 (92 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 92 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 | 137.3 | 245.3 | 400.8 | |
| February | 148.3 | 247.1 | 423.9 | |
| March | 164.5 | 266 | 544.9 | |
| April | 145.8 | 293.8 | 1,025.5 | |
| May | 221.8 | 1,131.9 | 3,435.2 | |
| June | 400.9 | 1,696.3 | 5,174 | |
| July | 323.2 | 558.9 | 1,536.6 | |
| August | 303.7 | 536.4 | 788.9 | |
| September | 227.6 | 425.9 | 635.4 | |
| October | 231.4 | 352.2 | 528.5 | |
| November | 207 | 300.6 | 479.1 | |
| December | 159.7 | 263.5 | 471.1 |
All values in cubic feet per second (cfs).