USGS Streamgage 08404000
Pecos River below Avalon Dam, NM
Pecos River below Avalon Dam, NM is USGS streamgage 08404000 in New Mexico, monitoring river discharge in hydrologic subbasin 13060011. It drains a watershed of about 18,080 square miles. Discharge records at this site go back to 1951. Typical flow runs near 0 cfs in July and 0 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- New Mexico
- Drainage area
- 18,080 sq mi
- Gauge elevation
- 3,114 ft
- Subbasin (HUC-8)
- 13060011
- Coordinates
- 32.48086, -104.26298
- USGS site number
- 08404000
- Records begin
- 1951-06-01 (75 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 75 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 | 4.9 | |
| February | 0 | 0 | 7.7 | |
| March | 0 | 0 | 0.5 | |
| April | 0 | 0 | 0 | |
| May | 0 | 0 | 0.2 | |
| June | 0 | 0 | 0 | |
| July | 0 | 0 | 70.9 | |
| August | 0 | 0 | 0 | |
| September | 0 | 0 | 7.4 | |
| October | 0 | 0 | 38.8 | |
| November | 0 | 0 | 184.8 | |
| December | 0 | 0 | 35.1 |
All values in cubic feet per second (cfs).
Common questions
- When does Pecos River below Avalon Dam, NM normally run highest?
- January, on the long-term record. The median daily flow that month is about 0 cfs, against 0 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 Avalon Dam, NM?
- It depends on the month. In January, half of days historically fall near 0 cfs, with the middle 80% of days between 0 and 4.9 cfs. The month-by-month table on this page gives the full range.
- How long has Pecos River below Avalon Dam, NM been measured?
- Discharge records at USGS site 08404000 begin in 1951, about 75 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 below Avalon Dam, NM?
- The gauge sits at 32.48086, -104.26298, in New Mexico, in hydrologic subbasin 13060011, at an elevation of about 3,114 feet, draining roughly 18,080 square miles.
- Can I use Pecos River below Avalon 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.
Other gauges in this subbasin
- Dark Canyon Draw near Whites City, NM
- Dark Canyon at Carlsbad, NM
- Pecos River below Dark Canyon at Carlsbad, NM
- Black River below Blue Springs near Whites City, NM
- Black River at Harkey Crossing near Malaga, NM
- Blue Springs above Diversions near Whites City, NM
- Black River above Malaga, NM
- Black River at Malaga, NM