USGS Streamgage 06477500
Firesteel Creek near Mount Vernon, SD
Firesteel Creek near Mount Vernon, SD is USGS streamgage 06477500, monitoring river discharge in hydrologic subbasin 10160011. It drains a watershed of about 588 square miles. Discharge records at this site go back to 1955. Typical flow runs near 0.6 cfs in July and 7 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 588 sq mi
- Gauge elevation
- 1,307 ft
- Subbasin (HUC-8)
- 10160011
- Coordinates
- 43.7764, -98.24567
- USGS site number
- 06477500
- Records begin
- 1955-09-01 (71 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 71 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 | 0 | 0.2 | 2 | |
| February | 0 | 0.5 | 17.1 | |
| March | 0.1 | 3.9 | 324.5 | |
| April | 0.1 | 7 | 215.2 | |
| May | 0 | 4.4 | 181.2 | |
| June | 0 | 2.8 | 219 | |
| July | 0 | 0.6 | 73.7 | |
| August | 0 | 0.1 | 17.6 | |
| September | 0 | 0.1 | 3.5 | |
| October | 0 | 0.1 | 5.2 | |
| November | 0 | 0.2 | 6.8 | |
| December | 0 | 0.2 | 3.2 |
All values in cubic feet per second (cfs).