Rivermatics

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 sits on the Rio Grande Floodway, alongside 2 other gauges Rivermatics tracks on the same river. 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. 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
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)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Rio Grande Floodway at San Acacia, 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.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
8.1 65.5 306
3.2 54.3 392
2.4 61.9 462
1.7 60.1 473
1.8 60.6 459
1 39.8 498
0.6 32.6 434
0.6 32.5 371
0.5 25.2 354
0.4 15.9 310
0.4 10.9 263
0.3 8.3 315
0.4 8.9 235
0.3 9.6 261

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 52 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
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 9,117 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Rio Grande Floodway at San Acacia, 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 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.

Upstream and downstream on the Rio Grande Floodway

Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Rio Grande Floodway in full.

Other gauges in this subbasin