Rivermatics

USGS Streamgage 09408195

Fort Pearce Wash near St. George, UT

Fort Pearce Wash near St. George, UT is USGS streamgage 09408195 in Utah, monitoring river discharge in hydrologic subbasin 15010009. It drains a watershed of about 1,349 square miles. Discharge records at this site go back to 1984. Typical flow runs near 0 cfs in July and 0 cfs in April, with the higher of the two arriving in April.

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Gauge details

State
Utah
Drainage area
1,349 sq mi
Gauge elevation
2,791 ft
Subbasin (HUC-8)
15010009
Coordinates
37.00165, -113.46884
USGS site number
09408195
Records begin
1984-10-01 (42 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 42 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 0 0.5
February 0 0 0.7
March 0 0 1.3
April 0 0 0.9
May 0 0 0.2
June 0 0 0
July 0 0 10.6
August 0 0 23.7
September 0 0 2.4
October 0 0 3.7
November 0 0 0.2
December 0 0 0.1

All values in cubic feet per second (cfs).

Common questions

When does Fort Pearce Wash near St. George, UT normally run highest?
January, on the long-term record. The median daily flow that month is about 0 cfs, against 0 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 Fort Pearce Wash near St. George, UT?
It depends on the month. In January, half of days historically fall near 0 cfs, with the middle 80% of days between 0 and 0.5 cfs. The month-by-month table on this page gives the full range.
How long has Fort Pearce Wash near St. George, UT been measured?
Discharge records at USGS site 09408195 begin in 1984, about 42 years, covering roughly 8,764 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Where is Fort Pearce Wash near St. George, UT?
The gauge sits at 37.00165, -113.46884, in Utah, in hydrologic subbasin 15010009, at an elevation of about 2,791 feet, draining roughly 1,349 square miles.
Can I use Fort Pearce Wash near St. George, UT 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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