USGS Streamgage 09410100
Santa Clara River below Winsor Dam, near Santa Clara, UT
Santa Clara River below Winsor Dam, near Santa Clara, UT is USGS streamgage 09410100 in Utah, monitoring river discharge in hydrologic subbasin 15010008. It drains a watershed of about 378 square miles. Discharge records at this site go back to 1971. Typical flow runs near 12.9 cfs in July and 14.8 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Utah
- Drainage area
- 378 sq mi
- Gauge elevation
- 3,195 ft
- Subbasin (HUC-8)
- 15010008
- Coordinates
- 37.19, -113.76806
- USGS site number
- 09410100
- Records begin
- 1971-11-24 (55 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 54 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 0 | 1.6 | 17.5 | |
| February | 0.2 | 2.9 | 60.1 | |
| March | 1.2 | 10.7 | 113.8 | |
| April | 2.3 | 14.8 | 113.8 | |
| May | 1.6 | 15 | 107.5 | |
| June | 1.1 | 13.8 | 88.8 | |
| July | 0.8 | 12.9 | 30.5 | |
| August | 0.6 | 11.6 | 23.7 | |
| September | 0.1 | 5.7 | 19.2 | |
| October | 0 | 0.6 | 9.8 | |
| November | 0 | 1.6 | 13.5 | |
| December | 0 | 1 | 10.8 |
All values in cubic feet per second (cfs).
Common questions
- When does Santa Clara River below Winsor Dam, near Santa Clara, UT normally run highest?
- May, on the long-term record. The median daily flow that month is about 15 cfs, against 0.6 cfs in October, 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 below Winsor Dam, near Santa Clara, UT?
- It depends on the month. In January, half of days historically fall near 1.6 cfs, with the middle 80% of days between 0 and 17.5 cfs. The month-by-month table on this page gives the full range.
- How long has Santa Clara River below Winsor Dam, near Santa Clara, UT been measured?
- Discharge records at USGS site 09410100 begin in 1971, about 55 years, covering roughly 4,385 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Santa Clara River below Winsor Dam, near Santa Clara, UT?
- The gauge sits at 37.19, -113.76806, in Utah, in hydrologic subbasin 15010008, at an elevation of about 3,195 feet, draining roughly 378 square miles.
- Can I use Santa Clara River below Winsor Dam, near Santa Clara, 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
- Santa Clara River at St. George, UT
- East Fork Virgin River near Glendale, UT
- East Fork Virgin River near Springdale, UT
- North Fork Virgin River near Springdale, UT
- Virgin River at Virgin, UT
- Virgin River Ab La Verkin Creek near La Verkin, UT
- Leeds Creek near Leeds, UT
- Virgin River Ab Quail Creek near Hurricane, UT