USGS Streamgage 09146200
Uncompahgre River near Ridgway, CO
Uncompahgre River near Ridgway, CO is USGS streamgage 09146200 in Colorado, monitoring river discharge in hydrologic subbasin 14020006. It drains a watershed of about 149 square miles. Discharge records at this site go back to 1958. Typical flow runs near 267.3 cfs in July and 101.9 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Colorado
- Drainage area
- 149 sq mi
- Gauge elevation
- 6,893 ft
- Subbasin (HUC-8)
- 14020006
- Coordinates
- 38.18388, -107.74589
- USGS site number
- 09146200
- Records begin
- 1958-10-01 (68 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 68 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 | 35.8 | 44.2 | 53.2 | |
| February | 35.6 | 43.6 | 56.9 | |
| March | 41.5 | 54.5 | 88.1 | |
| April | 64 | 101.9 | 182.5 | |
| May | 156.1 | 291.6 | 554.1 | |
| June | 261.8 | 536.6 | 933.9 | |
| July | 129.3 | 267.3 | 565 | |
| August | 72.6 | 135.9 | 249.4 | |
| September | 58.7 | 90.6 | 170.7 | |
| October | 55.7 | 80.1 | 131.9 | |
| November | 51 | 64.7 | 84.9 | |
| December | 41.6 | 50.7 | 63.4 |
All values in cubic feet per second (cfs).