USGS Streamgage 06402995
French Creek above Stockade Lake near Custer, SD
French Creek above Stockade Lake near Custer, SD is USGS streamgage 06402995, monitoring river discharge in hydrologic subbasin 10120109. It drains a watershed of about 68 square miles. Discharge records at this site go back to 1990. Typical flow runs near 6.7 cfs in July and 6.7 cfs in April, with the higher of the two arriving in April.
Gauge details
- Drainage area
- 68 sq mi
- Gauge elevation
- 5,179 ft
- Subbasin (HUC-8)
- 10120109
- Coordinates
- 43.76943, -103.53658
- USGS site number
- 06402995
- Records begin
- 1990-10-01 (36 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 7 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 | — | 0.8 | — | |
| February | — | 2.3 | — | |
| March | — | 5.9 | — | |
| April | — | 6.7 | — | |
| May | — | 23.7 | — | |
| June | — | 24.8 | — | |
| July | — | 6.7 | — | |
| August | — | 4.4 | — | |
| September | — | 3.7 | — | |
| October | — | 2.5 | — | |
| November | — | 2.6 | — | |
| December | — | 1.6 | — |
All values in cubic feet per second (cfs).