Rivermatics

USGS Streamgage 09521100

Colorado River below Yuma Main Canal Ww at Yuma, AZ

Colorado River below Yuma Main Canal Ww at Yuma, AZ is USGS streamgage 09521100 in California, monitoring river discharge in hydrologic subbasin 15030107. It drains a watershed of about 246,500 square miles. Discharge records at this site go back to 1963. Typical flow runs near 823.1 cfs in July and 901.7 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
California
Drainage area
246,500 sq mi
Gauge elevation
104 ft
Subbasin (HUC-8)
15030107
Coordinates
32.73171, -114.63273
USGS site number
09521100
Records begin
1963-10-01 (63 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 63 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 585.5 1,001.3 3,586.5
February 555.5 844 4,131.4
March 565 853.9 3,599.7
April 599.7 901.7 4,007.7
May 627 1,111.5 3,903.9
June 569.9 953.1 3,936.7
July 571.8 823.1 3,142.3
August 601.2 1,055.3 2,862.3
September 719.8 1,166.3 3,285
October 587.4 768.5 3,037.7
November 627.9 993.1 2,923.7
December 534.9 982.9 2,979.7

All values in cubic feet per second (cfs).

Common questions

When does Colorado River below Yuma Main Canal Ww at Yuma, AZ normally run highest?
September, on the long-term record. The median daily flow that month is about 1,166.3 cfs, against 768.5 cfs in October, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Colorado River below Yuma Main Canal Ww at Yuma, AZ?
It depends on the month. In January, half of days historically fall near 1,001.3 cfs, with the middle 80% of days between 585.5 and 3,586.5 cfs. The month-by-month table on this page gives the full range.
How long has Colorado River below Yuma Main Canal Ww at Yuma, AZ been measured?
Discharge records at USGS site 09521100 begin in 1963, about 63 years, covering roughly 9,126 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Colorado River below Yuma Main Canal Ww at Yuma, AZ?
The gauge sits at 32.73171, -114.63273, in California, in hydrologic subbasin 15030107, at an elevation of about 104 feet, draining roughly 246,500 square miles.
Can I use Colorado River below Yuma Main Canal Ww at Yuma, AZ 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.

Other gauges in this subbasin