Rivermatics

USGS Streamgage 09428510

Poston Wasteway near Poston, AZ

Poston Wasteway near Poston, AZ is USGS streamgage 09428510 in Arizona, monitoring river discharge in hydrologic subbasin 15030104. Discharge records at this site go back to 1969. Typical flow runs near 151.3 cfs in July and 129 cfs in April, with the higher of the two arriving in July.

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Gauge details

State
Arizona
Gauge elevation
291 ft
Subbasin (HUC-8)
15030104
Coordinates
33.99845, -114.45634
USGS site number
09428510
Records begin
1969-10-01 (57 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 57 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 42.8 70.2 171.5
February 51.4 93.3 172
March 66.5 107.4 192.3
April 84.9 129 216.3
May 96.9 136.2 226.3
June 101 140.7 227.5
July 104.4 151.3 249.6
August 100.7 156.5 248.6
September 95 146.8 234
October 83 128.8 198.3
November 69 111.8 176.5
December 63.3 100.1 166.5

All values in cubic feet per second (cfs).

Common questions

When does Poston Wasteway near Poston, AZ normally run highest?
August, on the long-term record. The median daily flow that month is about 156.5 cfs, against 70.2 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Poston Wasteway near Poston, AZ?
It depends on the month. In January, half of days historically fall near 70.2 cfs, with the middle 80% of days between 42.8 and 171.5 cfs. The month-by-month table on this page gives the full range.
How long has Poston Wasteway near Poston, AZ been measured?
Discharge records at USGS site 09428510 begin in 1969, about 57 years, covering roughly 8,748 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Poston Wasteway near Poston, AZ?
The gauge sits at 33.99845, -114.45634, in Arizona, in hydrologic subbasin 15030104, at an elevation of about 291 feet.
Can I use Poston Wasteway near Poston, 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