Rivermatics

USGS Streamgage 09368000

San Juan River at Shiprock, NM

San Juan River at Shiprock, NM is USGS streamgage 09368000 in New Mexico, monitoring river discharge in hydrologic subbasin 14080105. It sits on the San Juan River, alongside 9 other gauges Rivermatics tracks on the same river. It drains a watershed of about 12,900 square miles. Discharge records at this site go back to 1928. Typical flow runs near 1,199.9 cfs in July and 1,744.3 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
12,900 sq mi
Gauge elevation
4,886 ft
Subbasin (HUC-8)
14080105
Coordinates
36.77667, -108.68306
USGS site number
09368000
Records begin
1928-05-31 (98 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for San Juan River at Shiprock, 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
488 527 567
461 522 585
447 521 610
483 597 1,042
539 799 1,739
589 903 1,973
639 1,035 2,328
614 941 1,827
583 835 1,434
549 770 1,273
501 685 1,041
489 663 986
467 635 939
461 634 981

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 90 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 479.3 765.7 2,067.1
February 520.3 843 2,280
March 560.6 1,080.9 3,059
April 504.5 1,744.3 6,219.7
May 983.2 3,484.8 8,594.2
June 966.5 3,823.3 9,950.3
July 345.2 1,199.9 4,924.8
August 246.7 826.9 2,761.9
September 287 734.3 2,573
October 429.5 825.6 2,148.7
November 527.1 800.2 1,950
December 493 763.7 1,979

All values in cubic feet per second (cfs).

Common questions

When does San Juan River at Shiprock, NM normally run highest?
June, on the long-term record. The median daily flow that month is about 3,823.3 cfs, against 734.3 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 San Juan River at Shiprock, NM?
It depends on the month. In January, half of days historically fall near 765.7 cfs, with the middle 80% of days between 479.3 and 2,067.1 cfs. The month-by-month table on this page gives the full range.
How long has San Juan River at Shiprock, NM been measured?
Discharge records at USGS site 09368000 begin in 1928, about 98 years, covering roughly 9,199 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for San Juan River at Shiprock, 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 San Juan River at Shiprock, NM?
The gauge sits at 36.77667, -108.68306, in New Mexico, in hydrologic subbasin 14080105, at an elevation of about 4,886 feet, draining roughly 12,900 square miles.
Can I use San Juan River at Shiprock, 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 San Juan River

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

Other gauges in this subbasin