Rivermatics

USGS Streamgage 09413000

Santa Clara River at St. George, UT

Santa Clara River at St. George, UT is USGS streamgage 09413000 in Utah, monitoring river discharge in hydrologic subbasin 15010008. It drains a watershed of about 541 square miles. Discharge records at this site go back to 1950. Typical flow runs near 2.8 cfs in July and 7.3 cfs in April, with the higher of the two arriving in April.

View live conditions →

Gauge details

State
Utah
Drainage area
541 sq mi
Gauge elevation
2,545 ft
Subbasin (HUC-8)
15010008
Coordinates
37.07526, -113.59301
USGS site number
09413000
Records begin
1950-10-01 (76 years)

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 76 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 2.8 7.6 29.1
February 2.2 8.7 34.9
March 2.7 8.7 92
April 1.8 7.3 74.6
May 1.2 5.1 72.4
June 0.5 2.9 49.6
July 0.3 2.8 18.3
August 0.2 3.4 14.7
September 0.3 3.8 11.2
October 0.6 4.2 12.6
November 1.6 5.6 17.1
December 2.8 6.5 20.6

All values in cubic feet per second (cfs).

Common questions

When does Santa Clara River at St. George, UT normally run highest?
February, on the long-term record. The median daily flow that month is about 8.7 cfs, against 2.8 cfs in July, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
What is a normal flow for Santa Clara River at St. George, UT?
It depends on the month. In January, half of days historically fall near 7.6 cfs, with the middle 80% of days between 2.8 and 29.1 cfs. The month-by-month table on this page gives the full range.
How long has Santa Clara River at St. George, UT been measured?
Discharge records at USGS site 09413000 begin in 1950, about 76 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 Santa Clara River at St. George, UT?
The gauge sits at 37.07526, -113.59301, in Utah, in hydrologic subbasin 15010008, at an elevation of about 2,545 feet, draining roughly 541 square miles.
Can I use Santa Clara River at 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.

Other gauges in this subbasin