USGS Streamgage 06414000
Rapid Creek at Rapid City, SD
Rapid Creek at Rapid City, SD is USGS streamgage 06414000, monitoring river discharge in hydrologic subbasin 10120110. It drains a watershed of about 413 square miles. Discharge records at this site go back to 1905. Typical flow runs near 83.8 cfs in July and 55.2 cfs in April, with the higher of the two arriving in July.
Gauge details
- Drainage area
- 413 sq mi
- Gauge elevation
- 3,242 ft
- Subbasin (HUC-8)
- 10120110
- Coordinates
- 44.08552, -103.24184
- USGS site number
- 06414000
- Records begin
- 1905-07-26 (121 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 63 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 | 20.5 | 34.9 | 78.9 | |
| February | 22.3 | 34.4 | 76.4 | |
| March | 23.9 | 39.5 | 92.6 | |
| April | 24.1 | 55.2 | 166.5 | |
| May | 38.8 | 82.5 | 325.2 | |
| June | 38.3 | 83.3 | 473.6 | |
| July | 50.4 | 83.8 | 206.6 | |
| August | 41 | 66.5 | 162.3 | |
| September | 29.2 | 51.9 | 117.1 | |
| October | 22.5 | 40.3 | 92 | |
| November | 23.4 | 37.4 | 80.5 | |
| December | 21.3 | 35.1 | 82.2 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- Rapid Creek below Hawthorn Ditch at Rapid City, SD
- Rapid Creek above Wrf near Rapid City, SD
- Rapid Creek near Farmingdale, SD
- Rhoads Fork near Rochford, SD
- Castle Creek above Deerfield Reservoir near Hill City, SD
- Castle Creek below Deerfield Dam, SD
- Rapid Creek above Pactola Reservoir at Silver City, SD
- Rapid Creek below Pactola Dam, SD