USGS Streamgage 06102500
Teton River below South Fork near Choteau, MT
Teton River below South Fork near Choteau, MT is USGS streamgage 06102500 in Montana, monitoring river discharge in hydrologic subbasin 10030205. It drains a watershed of about 110 square miles. Discharge records at this site go back to 1948. Typical flow runs near 138.5 cfs in July and 72.8 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Montana
- Drainage area
- 110 sq mi
- Gauge elevation
- 4,783 ft
- Subbasin (HUC-8)
- 10030205
- Coordinates
- 47.88308, -112.61198
- USGS site number
- 06102500
- Records begin
- 1948-06-03 (78 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 79 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 | 25.3 | 49.6 | 64.6 | |
| February | 26.3 | 47.2 | 61.9 | |
| March | 35.7 | 47.1 | 87.6 | |
| April | 48.2 | 72.8 | 126.3 | |
| May | 141.9 | 264 | 543.2 | |
| June | 176.2 | 316.4 | 816.1 | |
| July | 87.7 | 138.5 | 392.7 | |
| August | 62.1 | 90.1 | 144.6 | |
| September | 53.9 | 75.1 | 101.6 | |
| October | 50.2 | 66.5 | 91.2 | |
| November | 45.1 | 66.2 | 89.8 | |
| December | 40.8 | 55.3 | 73.9 |
All values in cubic feet per second (cfs).