USGS Streamgage 09146020
Uncompahgre River near Ouray, CO
Uncompahgre River near Ouray, CO is USGS streamgage 09146020 in Colorado, monitoring river discharge in hydrologic subbasin 14020006. It drains a watershed of about 77 square miles. Discharge records at this site go back to 2001. Typical flow runs near 146.9 cfs in July and 90.8 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Colorado
- Drainage area
- 77 sq mi
- Gauge elevation
- 7,600 ft
- Subbasin (HUC-8)
- 14020006
- Coordinates
- 38.04333, -107.68312
- USGS site number
- 09146020
- Records begin
- 2001-04-04 (25 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 25 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 | 18.9 | 26 | 31.2 | |
| February | 18.3 | 24.1 | 34.3 | |
| March | 23.5 | 33.8 | 70.6 | |
| April | 49 | 90.8 | 170.5 | |
| May | 151.3 | 283.5 | 556.7 | |
| June | 167.1 | 424.1 | 815.3 | |
| July | 57.2 | 146.9 | 393.9 | |
| August | 39.1 | 81.2 | 147.1 | |
| September | 36.5 | 55.3 | 114.5 | |
| October | 30 | 45.7 | 105.1 | |
| November | 25.6 | 36.5 | 54 | |
| December | 20.1 | 29.3 | 37.8 |
All values in cubic feet per second (cfs).