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 sits on the Pecos River, alongside 25 other gauges Rivermatics tracks on the same river. 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. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
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)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Pecos River below Avalon Dam, NM. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 0 | 0 | 0 | ||
| 0 | 0 | 0 | ||
| 0 | 0 | 0 | ||
| 0 | 0 | 0 | ||
| 0 | 0 | 0 | ||
| 0 | 0 | 0 | ||
| 0 | 0 | 0 | ||
| 0 | 0 | 0 | ||
| 0 | 0 | 0 | ||
| 0 | 0 | 0 | ||
| 0 | 0 | 0 | ||
| 0 | 0 | 0 | ||
| 0 | 0 | 0 | ||
| 0 | 0 | 0 |
All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.
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 9,130 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Pecos River below Avalon Dam, NM?
- Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
- 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.
Upstream and downstream on the Pecos River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Pecos River in full.
- Pecos River near Pecos, NM 189 sq mi
- Pecos River near Anton Chico, NM 1,050 sq mi
- Pecos River above Canon del Uta near Colonias, NM 2,330 sq mi
- Pecos River above Santa Rosa Lake, NM 2,340 sq mi
- Pecos River below Santa Rosa Dam, NM 2,430 sq mi
- Pecos River near Puerto de Luna, NM 3,970 sq mi
- Pecos River below Sumner Dam, NM 4,390 sq mi
- Pecos River below Taiban Creek near Fort Sumner, NM 5,908 sq mi
- Pecos River near Dunlap, NM 6,647 sq mi
- Pecos River near Acme, NM 11,380 sq mi
- Pecos River near Lake Arthur, NM 14,760 sq mi
- Pecos River near Artesia, NM 15,300 sq mi
- Pecos River below Brantley Dam near Carlsbad, NM 17,650 sq mi
- Pecos River at Damsite 3 near Carlsbad, NM 17,980 sq mi
- Pecos River below Avalon Dam, NM this page
- Pecos River below Dark Canyon at Carlsbad, NM 18,550 sq mi
- Pecos River near Malaga, NM 19,190 sq mi
- Pecos River at Pierce Canyon Crossing, NM 19,260 sq mi
- Pecos River at Red Bluff, NM 19,540 sq mi
- Pecos River near Orla, TX 25,070 sq mi
- Pecos River at FM 3398 near Pecos, TX 26,230 sq mi
- Pecos River at RR 1776 near Grandfalls, TX 34,740 sq mi
- Pecos River near Girvin, TX 37,300 sq mi
- Pecos River near Sheffield, TX 40,685 sq mi
- Pecos River at Brotherton Rh near Pandale, TX 42,169 sq mi
- Pecos River near Langtry, TX 44,015 sq mi
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