USGS Streamgage 06289000
Little Bighorn River at State Line near Wyola, MT
Little Bighorn River at State Line near Wyola, MT is USGS streamgage 06289000 in Montana, monitoring river discharge in hydrologic subbasin 10080016. It drains a watershed of about 182 square miles. Discharge records at this site go back to 1939. Typical flow runs near 201 cfs in July and 77 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Montana
- Drainage area
- 182 sq mi
- Gauge elevation
- 4,333 ft
- Subbasin (HUC-8)
- 10080016
- Coordinates
- 45.00711, -107.61541
- USGS site number
- 06289000
- Records begin
- 1939-04-01 (87 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 87 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 | 46.5 | 64.3 | 77.8 | |
| February | 49.7 | 61.6 | 73.7 | |
| March | 51.5 | 61.6 | 73.7 | |
| April | 59.8 | 77 | 121.5 | |
| May | 156.7 | 294.8 | 562.8 | |
| June | 218.2 | 460.6 | 914.8 | |
| July | 120.3 | 201 | 325.6 | |
| August | 85.5 | 120.6 | 161.6 | |
| September | 73.1 | 96.2 | 126.2 | |
| October | 67.6 | 85.8 | 107.4 | |
| November | 58.2 | 75.6 | 94.4 | |
| December | 49.7 | 69.1 | 84.9 |
All values in cubic feet per second (cfs).