USGS Streamgage 08382650
Pecos River above Santa Rosa Lake, NM
Pecos River above Santa Rosa Lake, NM is USGS streamgage 08382650 in New Mexico, monitoring river discharge in hydrologic subbasin 13060001. It drains a watershed of about 2,340 square miles. Discharge records at this site go back to 1976. Typical flow runs near 35.8 cfs in July and 65 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- New Mexico
- Drainage area
- 2,340 sq mi
- Gauge elevation
- 4,760 ft
- Subbasin (HUC-8)
- 13060001
- Coordinates
- 35.05944, -104.76111
- USGS site number
- 08382650
- Records begin
- 1976-02-28 (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 | 2.2 | 12.7 | 32.9 | |
| February | 2.1 | 12.5 | 33.7 | |
| March | 2 | 20 | 123.3 | |
| April | 4.1 | 65 | 389.8 | |
| May | 4.7 | 200.9 | 718.5 | |
| June | 4.2 | 84.8 | 552.7 | |
| July | 4.5 | 35.8 | 282.5 | |
| August | 4.6 | 51.4 | 575 | |
| September | 4.1 | 25.7 | 268.5 | |
| October | 4 | 20.2 | 94.9 | |
| November | 3.2 | 16 | 68.6 | |
| December | 2.6 | 12.6 | 36.1 |
All values in cubic feet per second (cfs).
Common questions
- When does Pecos River above Santa Rosa Lake, NM normally run highest?
- May, on the long-term record. The median daily flow that month is about 200.9 cfs, against 12.5 cfs in February, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Pecos River above Santa Rosa Lake, NM?
- It depends on the month. In January, half of days historically fall near 12.7 cfs, with the middle 80% of days between 2.2 and 32.9 cfs. The month-by-month table on this page gives the full range.
- How long has Pecos River above Santa Rosa Lake, NM been measured?
- Discharge records at USGS site 08382650 begin in 1976, about 50 years, covering roughly 9,126 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Pecos River above Santa Rosa Lake, NM?
- The gauge sits at 35.05944, -104.76111, in New Mexico, in hydrologic subbasin 13060001, at an elevation of about 4,760 feet, draining roughly 2,340 square miles.
- Can I use Pecos River above Santa Rosa Lake, NM data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.