USGS Streamgage 06464100
Keya Paha River near Keyapaha, SD
Keya Paha River near Keyapaha, SD is USGS streamgage 06464100, monitoring river discharge in hydrologic subbasin 10150006. It drains a watershed of about 535 square miles. Discharge records at this site go back to 1981. Typical flow runs near 24.8 cfs in July and 63.7 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 535 sq mi
- Gauge elevation
- 2,218 ft
- Subbasin (HUC-8)
- 10150006
- Coordinates
- 43.12917, -100.10707
- USGS site number
- 06464100
- Records begin
- 1981-10-01 (45 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 45 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 | 8.9 | 23.1 | 49.6 | |
| February | 16.6 | 37 | 110.8 | |
| March | 32.7 | 59.1 | 186.1 | |
| April | 29.1 | 63.7 | 177.6 | |
| May | 23.5 | 61.5 | 165.1 | |
| June | 18.2 | 47.6 | 148.4 | |
| July | 11.5 | 24.8 | 65.5 | |
| August | 9.7 | 17.6 | 41.2 | |
| September | 9.5 | 16.4 | 31.2 | |
| October | 11.8 | 21.9 | 46.8 | |
| November | 14.3 | 26.6 | 51.1 | |
| December | 11.9 | 23.2 | 48.1 |
All values in cubic feet per second (cfs).