Rivermatics

USGS Streamgage 09353800

Los Pinos River near Ignacio, CO

Los Pinos River near Ignacio, CO is USGS streamgage 09353800 in Colorado, monitoring river discharge in hydrologic subbasin 14080101. It sits on the Los Pinos River, alongside 2 other gauges Rivermatics tracks on the same river. It drains a watershed of about 340 square miles. Discharge records at this site go back to 1999. Typical flow runs near 4.2 cfs in July and 78.1 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
Colorado
Drainage area
340 sq mi
Gauge elevation
6,657 ft
Subbasin (HUC-8)
14080101
Coordinates
37.16611, -107.5825
USGS site number
09353800
Records begin
1999-10-01 (27 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Los Pinos River near Ignacio, CO. 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
0.2 0.2 0.3
0.1 0.2 0.4
0.1 0.2 0.7
0.2 1.1 14.5
0.3 2.7 26.5
0.8 6.6 57
0.5 4.8 34.1
0.3 1.9 9.7
0.3 2.3 14
0.3 1.8 9.5
0.2 1.2 5.9
0.2 1 5.2
0.1 0.7 4.6
0.1 0.7 4.2

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 27 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 4.9 26.7 115.8
February 7.2 27.4 274.6
March 13.2 69.7 578.7
April 7.4 78.1 790.5
May 1.6 26.8 711.7
June 1.1 29 852.8
July 0.6 4.2 75.3
August 0.5 3.1 18.9
September 0.5 4.3 24.5
October 2.3 14.2 302.3
November 5.5 25.8 141.5
December 5.9 26.2 133.8

All values in cubic feet per second (cfs).

Common questions

When does Los Pinos River near Ignacio, CO normally run highest?
April, on the long-term record. The median daily flow that month is about 78.1 cfs, against 3.1 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Los Pinos River near Ignacio, CO?
It depends on the month. In January, half of days historically fall near 26.7 cfs, with the middle 80% of days between 4.9 and 115.8 cfs. The month-by-month table on this page gives the full range.
How long has Los Pinos River near Ignacio, CO been measured?
Discharge records at USGS site 09353800 begin in 1999, about 27 years, covering roughly 9,200 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Los Pinos River near Ignacio, CO?
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 Los Pinos River near Ignacio, CO?
The gauge sits at 37.16611, -107.5825, in Colorado, in hydrologic subbasin 14080101, at an elevation of about 6,657 feet, draining roughly 340 square miles.
Can I use Los Pinos River near Ignacio, CO 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 Los Pinos River

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

Other gauges in this subbasin