USGS Streamgage 06400000
Hat Creek near Edgemont, SD
Hat Creek near Edgemont, SD is USGS streamgage 06400000, monitoring river discharge in hydrologic subbasin 10120108. It drains a watershed of about 959 square miles. Discharge records at this site go back to 1905. Typical flow runs near 0.8 cfs in July and 3.5 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 959 sq mi
- Gauge elevation
- 3,309 ft
- Subbasin (HUC-8)
- 10120108
- Coordinates
- 43.23997, -103.58825
- USGS site number
- 06400000
- Records begin
- 1905-08-12 (121 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 76 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 | 0.5 | 6.4 | |
| February | 0 | 1.4 | 12.8 | |
| March | 0.1 | 3.4 | 54.2 | |
| April | 0.1 | 3.5 | 62.1 | |
| May | 0.1 | 3.6 | 117.3 | |
| June | 0 | 5.2 | 153.1 | |
| July | 0 | 0.8 | 33.2 | |
| August | 0 | 0.1 | 7 | |
| September | 0 | 0 | 1.8 | |
| October | 0 | 0 | 6.7 | |
| November | 0 | 0.5 | 5.8 | |
| December | 0 | 0.7 | 5 |
All values in cubic feet per second (cfs).