USGS Streamgage 08382830
Pecos River below Santa Rosa Dam, NM
Pecos River below Santa Rosa Dam, NM is USGS streamgage 08382830 in New Mexico, monitoring river discharge in hydrologic subbasin 13060001. It drains a watershed of about 2,430 square miles. Discharge records at this site go back to 1980. Typical flow runs near 0.2 cfs in July and 0.1 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- New Mexico
- Drainage area
- 2,430 sq mi
- Gauge elevation
- 4,640 ft
- Subbasin (HUC-8)
- 13060001
- Coordinates
- 35.02417, -104.68889
- USGS site number
- 08382830
- Records begin
- 1980-01-17 (46 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 46 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 | 0 | 0.1 | 8.8 | |
| February | 0 | 0.1 | 65.6 | |
| March | 0 | 0.1 | 109.3 | |
| April | 0 | 0.1 | 147.9 | |
| May | 0 | 0.4 | 849.1 | |
| June | 0 | 2.6 | 1,078.4 | |
| July | 0 | 0.2 | 651.2 | |
| August | 0 | 0.3 | 811.2 | |
| September | 0 | 0.2 | 548.4 | |
| October | 0 | 0.1 | 3 | |
| November | 0 | 0.1 | 2.3 | |
| December | 0 | 0.1 | 4.9 |
All values in cubic feet per second (cfs).
Common questions
- When does Pecos River below Santa Rosa Dam, NM normally run highest?
- June, on the long-term record. The median daily flow that month is about 2.6 cfs, against 0.1 cfs in January, 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 below Santa Rosa Dam, NM?
- It depends on the month. In January, half of days historically fall near 0.1 cfs, with the middle 80% of days between 0 and 8.8 cfs. The month-by-month table on this page gives the full range.
- How long has Pecos River below Santa Rosa Dam, NM been measured?
- Discharge records at USGS site 08382830 begin in 1980, about 46 years, covering roughly 9,121 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Pecos River below Santa Rosa Dam, NM?
- The gauge sits at 35.02417, -104.68889, in New Mexico, in hydrologic subbasin 13060001, at an elevation of about 4,640 feet, draining roughly 2,430 square miles.
- Can I use Pecos River below Santa Rosa Dam, 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.