USGS Streamgage 06063000
Tenmile Creek near Helena, MT
Tenmile Creek near Helena, MT is USGS streamgage 06063000 in Montana, monitoring river discharge in hydrologic subbasin 10030101. It drains a watershed of about 99 square miles. Discharge records at this site go back to 1908. Typical flow runs near 10.9 cfs in July and 30.7 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Montana
- Drainage area
- 99 sq mi
- Gauge elevation
- 3,958 ft
- Subbasin (HUC-8)
- 10030101
- Coordinates
- 46.60501, -112.08826
- USGS site number
- 06063000
- Records begin
- 1908-08-01 (118 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 117 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 | 1.8 | 4.7 | 11.2 | |
| February | 2 | 5.1 | 11.3 | |
| March | 2.6 | 8 | 23.8 | |
| April | 8 | 30.7 | 85.8 | |
| May | 29.3 | 89.3 | 246.1 | |
| June | 12 | 66.5 | 235.9 | |
| July | 0.6 | 10.9 | 53.6 | |
| August | 0.1 | 1.4 | 12.9 | |
| September | 0.3 | 2.3 | 11.3 | |
| October | 1.1 | 6.2 | 20.6 | |
| November | 2.1 | 7.2 | 18.8 | |
| December | 1.8 | 5.2 | 13.1 |
All values in cubic feet per second (cfs).