Rivermatics

USGS Streamgage 08390500

Rio Hondo at Diamond A Ranch near Roswell, NM

Rio Hondo at Diamond A Ranch near Roswell, NM is USGS streamgage 08390500 in New Mexico, monitoring river discharge in hydrologic subbasin 13060008. It sits on the Rio Hondo, alongside 2 other gauges Rivermatics tracks on the same river. It drains a watershed of about 947 square miles. Discharge records at this site go back to 1939. 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
947 sq mi
Gauge elevation
4,187 ft
Subbasin (HUC-8)
13060008
Coordinates
33.34917, -104.85167
USGS site number
08390500
Records begin
1939-10-01 (87 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Rio Hondo at Diamond A Ranch near Roswell, 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
0 0 0.6
0 0.1 12.9
0 0.1 23.9
0 0.4 121
0 0.7 101
0 0.3 61.8
0 0.1 44
0 0.2 44.9
0 0.4 79.7
0 0.4 71.5
0 0.2 50.5
0 0.1 21.3
0 0 12.7
0 0 8.1

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 87 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 0 0 46.3
February 0 0 46.2
March 0 0 38.8
April 0 0 79.2
May 0 0 68.5
June 0 0 26.1
July 0 0 62
August 0 0.2 99.9
September 0 0 90.4
October 0 0 36.7
November 0 0 31.2
December 0 0 35.6

All values in cubic feet per second (cfs).

Common questions

When does Rio Hondo at Diamond A Ranch near Roswell, NM normally run highest?
August, on the long-term record. The median daily flow that month is about 0.2 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 Rio Hondo at Diamond A Ranch near Roswell, 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 46.3 cfs. The month-by-month table on this page gives the full range.
How long has Rio Hondo at Diamond A Ranch near Roswell, NM been measured?
Discharge records at USGS site 08390500 begin in 1939, about 87 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 Rio Hondo at Diamond A Ranch near Roswell, 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 Hondo at Diamond A Ranch near Roswell, NM?
The gauge sits at 33.34917, -104.85167, in New Mexico, in hydrologic subbasin 13060008, at an elevation of about 4,187 feet, draining roughly 947 square miles.
Can I use Rio Hondo at Diamond A Ranch near Roswell, 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 Hondo

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

Other gauges in this subbasin