USGS Streamgage 09147025
Uncompahgre River below Ridgway Reservoir, CO
Uncompahgre River below Ridgway Reservoir, CO is USGS streamgage 09147025 in Colorado, monitoring river discharge in hydrologic subbasin 14020006. It drains a watershed of about 265 square miles. Discharge records at this site go back to 1988. Typical flow runs near 379.1 cfs in July and 191.6 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Colorado
- Drainage area
- 265 sq mi
- Gauge elevation
- 6,649 ft
- Subbasin (HUC-8)
- 14020006
- Coordinates
- 38.24056, -107.76031
- USGS site number
- 09147025
- Records begin
- 1988-10-01 (38 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 38 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 | 39 | 49.2 | 76.7 | |
| February | 38.2 | 49.6 | 84.1 | |
| March | 35.9 | 58.1 | 158.1 | |
| April | 44.1 | 191.6 | 394.5 | |
| May | 145.3 | 295.1 | 486.6 | |
| June | 164.4 | 390.2 | 726.7 | |
| July | 216.7 | 379.1 | 625.2 | |
| August | 178.5 | 328.5 | 512.5 | |
| September | 70.7 | 156.4 | 335.9 | |
| October | 51 | 76.7 | 196.3 | |
| November | 39.8 | 50.8 | 104.2 | |
| December | 40.1 | 51.9 | 95.6 |
All values in cubic feet per second (cfs).