USGS Streamgage 06418800
Rapid Creek above Wrf near Rapid City, SD
Rapid Creek above Wrf near Rapid City, SD is USGS streamgage 06418800, monitoring river discharge in hydrologic subbasin 10120110. It drains a watershed of about 449 square miles. Discharge records at this site go back to 2016. Typical flow runs near 77.8 cfs in July and 71.4 cfs in April, with the higher of the two arriving in July.
Gauge details
- Drainage area
- 449 sq mi
- Gauge elevation
- 3,007 ft
- Subbasin (HUC-8)
- 10120110
- Coordinates
- 44.02681, -103.10111
- USGS site number
- 06418800
- Records begin
- 2016-08-17 (10 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 10 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 | 31.5 | 55 | 84.1 | |
| February | 36.6 | 56.3 | 84.8 | |
| March | 42.3 | 57.8 | 125.1 | |
| April | 34.4 | 71.4 | 276.1 | |
| May | 33.5 | 79.5 | 520.1 | |
| June | 28.8 | 88.9 | 664.7 | |
| July | 33.7 | 77.8 | 654.9 | |
| August | 27.1 | 53.7 | 286.3 | |
| September | 22.1 | 47.8 | 151.8 | |
| October | 33.4 | 54.4 | 179.2 | |
| November | 45.2 | 66.7 | 106.2 | |
| December | 33.7 | 62.9 | 89.4 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- 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
- Rapid Creek above Johnson Siding below Pactola Dam, SD
- Rapid Creek at Big Bend near Rapid City, SD