Rivermatics

USGS Streamgage 09530000

Reservation Main Drain No. 4 near Yuma, AZ

Reservation Main Drain No. 4 near Yuma, AZ is USGS streamgage 09530000 in California, monitoring river discharge in hydrologic subbasin 15030107. Discharge records at this site go back to 1966. Typical flow runs near 61 cfs in July and 64.7 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
California
Gauge elevation
114 ft
Subbasin (HUC-8)
15030107
Coordinates
32.73615, -114.62212
USGS site number
09530000
Records begin
1966-10-01 (60 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 37 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 39.9 55.7 74.5
February 42.5 52.5 72.6
March 43.5 56.8 78.3
April 52.1 64.7 82
May 55.4 70.1 85.2
June 51.8 64 82.7
July 47.3 61 77.4
August 47.6 60.4 77.6
September 50.8 62.7 78.8
October 51.4 63.1 88.7
November 54.4 66.6 91.2
December 47.4 61.1 79.9

All values in cubic feet per second (cfs).

Common questions

When does Reservation Main Drain No. 4 near Yuma, AZ normally run highest?
May, on the long-term record. The median daily flow that month is about 70.1 cfs, against 52.5 cfs in February, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Reservation Main Drain No. 4 near Yuma, AZ?
It depends on the month. In January, half of days historically fall near 55.7 cfs, with the middle 80% of days between 39.9 and 74.5 cfs. The month-by-month table on this page gives the full range.
How long has Reservation Main Drain No. 4 near Yuma, AZ been measured?
Discharge records at USGS site 09530000 begin in 1966, about 60 years, covering roughly 8,761 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Reservation Main Drain No. 4 near Yuma, AZ?
The gauge sits at 32.73615, -114.62212, in California, in hydrologic subbasin 15030107, at an elevation of about 114 feet.
Can I use Reservation Main Drain No. 4 near 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