USGS Streamgage 06309200
Middle Fork Powder River near Barnum, WY
Middle Fork Powder River near Barnum, WY is USGS streamgage 06309200 in Wyoming, monitoring river discharge in hydrologic subbasin 10090201. It drains a watershed of about 45 square miles. Discharge records at this site go back to 1961. Typical flow runs near 13.4 cfs in July and 22.9 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Wyoming
- Drainage area
- 45 sq mi
- Gauge elevation
- 7,224 ft
- Subbasin (HUC-8)
- 10090201
- Coordinates
- 43.57774, -107.1384
- USGS site number
- 06309200
- Records begin
- 1961-09-01 (65 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 65 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 | 3.5 | 5.2 | 6.5 | |
| February | 3.8 | 5.1 | 6.9 | |
| March | 3.9 | 5.6 | 11.4 | |
| April | 8.2 | 22.9 | 77.1 | |
| May | 41.6 | 118.1 | 342.6 | |
| June | 17.7 | 49.2 | 190.9 | |
| July | 6.9 | 13.4 | 31.8 | |
| August | 4.8 | 7.6 | 12 | |
| September | 4.6 | 6.7 | 9.7 | |
| October | 4.7 | 6.6 | 10.4 | |
| November | 4.3 | 6 | 9 | |
| December | 3.8 | 5.5 | 7.4 |
All values in cubic feet per second (cfs).