USGS Streamgage 09060770
Rock Creek at McCoy, CO
Rock Creek at McCoy, CO is USGS streamgage 09060770 in Colorado, monitoring river discharge in hydrologic subbasin 14010001. It drains a watershed of about 198 square miles. Discharge records at this site go back to 1983. Typical flow runs near 17.9 cfs in July and 94.6 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Colorado
- Drainage area
- 198 sq mi
- Gauge elevation
- 6,690 ft
- Subbasin (HUC-8)
- 14010001
- Coordinates
- 39.91394, -106.72731
- USGS site number
- 09060770
- Records begin
- 1983-10-01 (43 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 43 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 | 10.8 | 20.1 | 30.8 | |
| February | 13.7 | 21 | 31.2 | |
| March | 20.1 | 29.2 | 60.8 | |
| April | 40.3 | 94.6 | 276.3 | |
| May | 71 | 226.1 | 688.7 | |
| June | 15.7 | 93.2 | 282.4 | |
| July | 4.9 | 17.9 | 69.5 | |
| August | 3.3 | 15.5 | 55.6 | |
| September | 5.1 | 15.7 | 52.8 | |
| October | 10.5 | 19.5 | 51.1 | |
| November | 15 | 24.7 | 45.5 | |
| December | 13 | 19.5 | 37.1 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- Colorado River at Catamount Bridge, CO
- Colorado River near Dotsero, CO
- Grizzly Creek near Grizzly Lake near Glenwood Springs, CO
- Colorado River above Glenwood Springs, CO
- North Inlet below Summerland Park at Rmnp
- Colorado River below Baker Gulch near Grand Lake, CO
- East Inlet near Grand Lake, CO
- Grand Lake Outlet below Chipmunk Ln at Grand Lake, CO