USGS Streamgage 09149500
Uncompahgre River at Delta, CO
Uncompahgre River at Delta, CO is USGS streamgage 09149500 in Colorado, monitoring river discharge in hydrologic subbasin 14020006. It drains a watershed of about 1,114 square miles. Discharge records at this site go back to 1903. Typical flow runs near 228.2 cfs in July and 230.8 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Colorado
- Drainage area
- 1,114 sq mi
- Gauge elevation
- 4,934 ft
- Subbasin (HUC-8)
- 14020006
- Coordinates
- 38.74194, -108.08042
- USGS site number
- 09149500
- Records begin
- 1903-06-15 (123 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 88 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 | 100.9 | 147.8 | 202.1 | |
| February | 94.5 | 140 | 199.2 | |
| March | 84.3 | 163.9 | 309.5 | |
| April | 86.1 | 230.8 | 589.7 | |
| May | 121.9 | 363.2 | 914.6 | |
| June | 148.3 | 443.1 | 1,029.4 | |
| July | 118.1 | 228.2 | 652.3 | |
| August | 125.5 | 227.6 | 579.4 | |
| September | 191.7 | 365.6 | 676 | |
| October | 227.8 | 416.2 | 705.2 | |
| November | 156.9 | 279.7 | 392.6 | |
| December | 121 | 182 | 253.2 |
All values in cubic feet per second (cfs).