USGS Streamgage 06440200
South Fork Bad River near Cottonwood, SD
South Fork Bad River near Cottonwood, SD is USGS streamgage 06440200, monitoring river discharge in hydrologic subbasin 10140102. It drains a watershed of about 257 square miles. Discharge records at this site go back to 1988. Typical flow runs near 0.3 cfs in July and 1 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 257 sq mi
- Gauge elevation
- 2,254 ft
- Subbasin (HUC-8)
- 10140102
- Coordinates
- 43.96902, -101.76723
- USGS site number
- 06440200
- Records begin
- 1988-10-01 (38 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 38 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 | 2.1 | |
| February | 0 | 0.3 | 20.8 | |
| March | 0 | 1.4 | 80.5 | |
| April | 0 | 1 | 61.2 | |
| May | 0 | 2.1 | 181.7 | |
| June | 0 | 1.4 | 105.3 | |
| July | 0 | 0.3 | 22.1 | |
| August | 0 | 0 | 11.6 | |
| September | 0 | 0 | 3.8 | |
| October | 0 | 0 | 9.2 | |
| November | 0 | 0 | 4.1 | |
| December | 0 | 0 | 0.8 |
All values in cubic feet per second (cfs).