USGS Streamgage 06479515
Willow Creek near Watertown, SD
Willow Creek near Watertown, SD is USGS streamgage 06479515, monitoring river discharge in hydrologic subbasin 10170201. It drains a watershed of about 109 square miles. Discharge records at this site go back to 1971. Typical flow runs near 1 cfs in July and 19.8 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 109 sq mi
- Gauge elevation
- 1,738 ft
- Subbasin (HUC-8)
- 10170201
- Coordinates
- 44.91885, -97.04563
- USGS site number
- 06479515
- Records begin
- 1971-09-01 (55 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 15 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 | 2.6 | |
| February | 0 | 0.5 | 33.9 | |
| March | 0.2 | 8.6 | 327.6 | |
| April | 2.1 | 19.8 | 245 | |
| May | 0.5 | 7.8 | 128.7 | |
| June | 0.1 | 6.8 | 119.3 | |
| July | 0 | 1 | 40.4 | |
| August | 0 | 0.6 | 33.5 | |
| September | 0 | 0.7 | 33.2 | |
| October | 0 | 0.6 | 18.4 | |
| November | 0.1 | 0.8 | 13.2 | |
| December | 0 | 0.4 | 7.7 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- Big Sioux River below Watertown, SD
- Big Sioux River near Castlewood, SD
- Big Sioux River near Florence, SD
- Big Sioux River near Watertown, SD
- Lake Kampeska at Water Plant at Watertown, SD
- Big Sioux River at Lake Kampeska near Watertown, SD
- Mud Creek near Rauville, SD
- South Branch Tributary Mud Creek near Rauville, SD