Rivermatics

USGS Streamgage 08251500

Rio Grande near Lobatos, CO

Rio Grande near Lobatos, CO is USGS streamgage 08251500 in Colorado, monitoring river discharge in hydrologic subbasin 13010002. It drains a watershed of about 7,700 square miles. Discharge records at this site go back to 1899. Typical flow runs near 187.3 cfs in July and 368.8 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
Colorado
Drainage area
7,700 sq mi
Gauge elevation
7,428 ft
Subbasin (HUC-8)
13010002
Coordinates
37.07861, -105.75694
USGS site number
08251500
Records begin
1899-07-01 (127 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 126 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 164.8 270.2 401.7
February 200.5 309.3 480.8
March 195.6 418.5 748.1
April 78.4 368.8 1,304.7
May 80.8 840.2 3,309.4
June 51.9 779.4 4,160.7
July 13.8 187.3 1,526.5
August 14.2 93 577.8
September 18.2 77.7 490
October 32.2 105.4 652.2
November 71.6 278.1 705.7
December 139.9 285.1 476.5

All values in cubic feet per second (cfs).

Common questions

When does Rio Grande near Lobatos, CO normally run highest?
May, on the long-term record. The median daily flow that month is about 840.2 cfs, against 77.7 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 near Lobatos, CO?
It depends on the month. In January, half of days historically fall near 270.2 cfs, with the middle 80% of days between 164.8 and 401.7 cfs. The month-by-month table on this page gives the full range.
How long has Rio Grande near Lobatos, CO been measured?
Discharge records at USGS site 08251500 begin in 1899, about 127 years, covering roughly 8,548 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Rio Grande near Lobatos, CO?
The gauge sits at 37.07861, -105.75694, in Colorado, in hydrologic subbasin 13010002, at an elevation of about 7,428 feet, draining roughly 7,700 square miles.
Can I use Rio Grande near Lobatos, 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.

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