USGS Streamgage 09144250
Gunnison River at Delta, CO
Gunnison River at Delta, CO is USGS streamgage 09144250 in Colorado, monitoring river discharge in hydrologic subbasin 14020005. It drains a watershed of about 5,636 square miles. Discharge records at this site go back to 1976. Typical flow runs near 1,150.2 cfs in July and 1,690.3 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Colorado
- Drainage area
- 5,636 sq mi
- Gauge elevation
- 4,924 ft
- Subbasin (HUC-8)
- 14020005
- Coordinates
- 38.75304, -108.0784
- USGS site number
- 09144250
- Records begin
- 1976-06-01 (50 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 50 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 | 483.8 | 978.1 | 2,425.2 | |
| February | 505.9 | 946.6 | 2,513.8 | |
| March | 550.1 | 1,031.9 | 3,077.1 | |
| April | 645.1 | 1,690.3 | 4,094.7 | |
| May | 894.4 | 3,191 | 8,208.4 | |
| June | 817.6 | 2,416.7 | 8,293.3 | |
| July | 481.2 | 1,150.2 | 3,807.4 | |
| August | 492.4 | 1,018.5 | 1,907.7 | |
| September | 592 | 968 | 1,776 | |
| October | 566.1 | 965.4 | 2,062.3 | |
| November | 512 | 928.9 | 2,392.3 | |
| December | 492.4 | 991 | 2,376.8 |
All values in cubic feet per second (cfs).