Rivermatics

USGS Streamgage 09481000

Nogales Wash at Nogales, AZ

Nogales Wash at Nogales, AZ is USGS streamgage 09481000 in Arizona, monitoring river discharge in hydrologic subbasin 15050301. It drains a watershed of about 29 square miles. Discharge records at this site go back to 1932. Typical flow runs near 4.6 cfs in July and 2.8 cfs in April, with the higher of the two arriving in July.

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Gauge details

State
Arizona
Drainage area
29 sq mi
Gauge elevation
3,807 ft
Subbasin (HUC-8)
15050301
Coordinates
31.34327, -110.93167
USGS site number
09481000
Records begin
1932-04-01 (94 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 95 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 0 3.3 15.8
February 0 3.4 11.1
March 0.8 3.4 9
April 0 2.8 5
May 0 2.6 4.3
June 0 2.6 11.3
July 0.2 4.6 85.3
August 0.5 6 83.3
September 0.2 3.9 44.1
October 0.8 2.9 15.8
November 0.8 3 10.6
December 0.4 3.9 13.2

All values in cubic feet per second (cfs).

Common questions

When does Nogales Wash at Nogales, AZ normally run highest?
August, on the long-term record. The median daily flow that month is about 6 cfs, against 2.6 cfs in May, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Nogales Wash at Nogales, AZ?
It depends on the month. In January, half of days historically fall near 3.3 cfs, with the middle 80% of days between 0 and 15.8 cfs. The month-by-month table on this page gives the full range.
How long has Nogales Wash at Nogales, AZ been measured?
Discharge records at USGS site 09481000 begin in 1932, about 94 years, covering roughly 5,945 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Nogales Wash at Nogales, AZ?
The gauge sits at 31.34327, -110.93167, in Arizona, in hydrologic subbasin 15050301, at an elevation of about 3,807 feet, draining roughly 29 square miles.
Can I use Nogales Wash at Nogales, 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