USGS Streamgage 06479010
Vermillion River near Vermillion, SD
Vermillion River near Vermillion, SD is USGS streamgage 06479010, monitoring river discharge in hydrologic subbasin 10170102. It drains a watershed of about 2,254 square miles. Discharge records at this site go back to 1983. Typical flow runs near 186.3 cfs in July and 366.2 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 2,254 sq mi
- Gauge elevation
- 1,137 ft
- Subbasin (HUC-8)
- 10170102
- Coordinates
- 42.81722, -96.92421
- USGS site number
- 06479010
- Records begin
- 1983-10-01 (43 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 43 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 | 10.8 | 49 | 168.6 | |
| February | 12.4 | 58.2 | 359.6 | |
| March | 42.2 | 225.5 | 1,927.8 | |
| April | 53.2 | 366.2 | 2,752.3 | |
| May | 66.7 | 364.9 | 2,126.1 | |
| June | 53.7 | 361 | 2,790.7 | |
| July | 36.4 | 186.3 | 1,437.6 | |
| August | 14.5 | 92.8 | 464.7 | |
| September | 8.2 | 81.8 | 723.1 | |
| October | 9.3 | 73.4 | 785.5 | |
| November | 11.6 | 80.5 | 492.1 | |
| December | 9.6 | 61.3 | 287.3 |
All values in cubic feet per second (cfs).