USGS Streamgage 09128000
Gunnison River below Gunnison Tunnel, CO
Gunnison River below Gunnison Tunnel, CO is USGS streamgage 09128000 in Colorado, monitoring river discharge in hydrologic subbasin 14020002. It drains a watershed of about 3,971 square miles. Discharge records at this site go back to 1906. Typical flow runs near 889.8 cfs in July and 738.9 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Colorado
- Drainage area
- 3,971 sq mi
- Gauge elevation
- 6,542 ft
- Subbasin (HUC-8)
- 14020002
- Coordinates
- 38.52915, -107.64895
- USGS site number
- 09128000
- Records begin
- 1906-06-13 (120 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 116 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 | 322.4 | 474.7 | 1,767.4 | |
| February | 323.6 | 497.8 | 1,730 | |
| March | 322.7 | 605 | 1,782.6 | |
| April | 260.7 | 738.9 | 2,645 | |
| May | 330.1 | 2,041.6 | 6,633.5 | |
| June | 343.4 | 2,498.3 | 8,387 | |
| July | 198.5 | 889.8 | 3,395.2 | |
| August | 143.7 | 593.7 | 1,463.5 | |
| September | 37.4 | 454 | 1,183.3 | |
| October | 70.2 | 428 | 1,245.5 | |
| November | 264.6 | 577 | 1,563 | |
| December | 324.7 | 500.1 | 1,786.1 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- Smith Fork near Lazear, CO
- Gunnison River at Cnty Rd 32 below Gunnison, CO
- Ohio Creek near Baldwin, CO
- Ohio Creek above Mouth near Gunnison, CO
- Gunnison River near Gunnison, CO
- Gunnison River at Gunnison Whitewater Park, CO
- Lake Fork below Lake San Cristobal near Lake City, CO
- Henson Creek at Lake City, CO