USGS Streamgage 08354900
Rio Grande Floodway at San Acacia, NM
Rio Grande Floodway at San Acacia, NM is USGS streamgage 08354900 in New Mexico, monitoring river discharge in hydrologic subbasin 13020203. It drains a watershed of about 26,770 square miles. Discharge records at this site go back to 1958. Typical flow runs near 233.4 cfs in July and 699.8 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- New Mexico
- Drainage area
- 26,770 sq mi
- Gauge elevation
- 4,643 ft
- Subbasin (HUC-8)
- 13020203
- Coordinates
- 34.25639, -106.89083
- USGS site number
- 08354900
- Records begin
- 1958-10-01 (68 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 52 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 | 1.5 | 708.2 | 1,180.3 | |
| February | 1.4 | 713.5 | 1,372.8 | |
| March | 20.8 | 602.4 | 1,850.3 | |
| April | 34.6 | 699.8 | 3,120 | |
| May | 80.3 | 1,801 | 4,628.1 | |
| June | 25.3 | 739.2 | 4,487.7 | |
| July | 13 | 233.4 | 2,856.8 | |
| August | 9 | 202.8 | 1,463.5 | |
| September | 7.3 | 123 | 1,316.5 | |
| October | 11.1 | 191.4 | 1,014.1 | |
| November | 5.6 | 701.8 | 1,582 | |
| December | 2.5 | 787.4 | 1,494.8 |
All values in cubic feet per second (cfs).
Common questions
- When does Rio Grande Floodway at San Acacia, NM normally run highest?
- May, on the long-term record. The median daily flow that month is about 1,801 cfs, against 123 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Rio Grande Floodway at San Acacia, NM?
- It depends on the month. In January, half of days historically fall near 708.2 cfs, with the middle 80% of days between 1.5 and 1,180.3 cfs. The month-by-month table on this page gives the full range.
- How long has Rio Grande Floodway at San Acacia, NM been measured?
- Discharge records at USGS site 08354900 begin in 1958, about 68 years, covering roughly 9,113 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Rio Grande Floodway at San Acacia, NM?
- The gauge sits at 34.25639, -106.89083, in New Mexico, in hydrologic subbasin 13020203, at an elevation of about 4,643 feet, draining roughly 26,770 square miles.
- Can I use Rio Grande Floodway at San Acacia, 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
- Rio Grande at Bridge near Escondida, NM
- Rio Grande above US Hwy 380 near San Antonio, NM
- Rio Grande Conveyance Channel at San Marcial, NM
- Rio Grande Floodway at San Marcial, NM
- Campus Wash at Albuquerque, NM
- Embudo Arroyo at Albuquerque, NM
- N. Floodway Channel at Albuquerque, NM
- Hahn Arroyo In Albuquerque, NM