USGS Streamgage 09371520
McElmo Creek above Trail Canyon near Cortez, CO
McElmo Creek above Trail Canyon near Cortez, CO is USGS streamgage 09371520 in Colorado, monitoring river discharge in hydrologic subbasin 14080202. It drains a watershed of about 234 square miles. Discharge records at this site go back to 1993. Typical flow runs near 53.7 cfs in July and 18.9 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Colorado
- Drainage area
- 234 sq mi
- Gauge elevation
- 5,651 ft
- Subbasin (HUC-8)
- 14080202
- Coordinates
- 37.32666, -108.70066
- USGS site number
- 09371520
- Records begin
- 1993-08-01 (33 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 33 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 | 11.2 | 19.2 | 41.9 | |
| February | 12.1 | 22.1 | 60.8 | |
| March | 13 | 22.5 | 77.9 | |
| April | 8.6 | 18.9 | 51.6 | |
| May | 21.3 | 38.2 | 83.1 | |
| June | 24.5 | 47.3 | 90.9 | |
| July | 25.1 | 53.7 | 105.5 | |
| August | 25.3 | 69.4 | 129.3 | |
| September | 25.6 | 76.1 | 134.7 | |
| October | 18.9 | 53.9 | 105.1 | |
| November | 14.5 | 27.5 | 60 | |
| December | 11.4 | 21.8 | 39.5 |
All values in cubic feet per second (cfs).