USGS Streamgage 11147500
Salinas River A Paso Robles, CA
Salinas River A Paso Robles, CA is USGS streamgage 11147500 in California, monitoring river discharge in hydrologic subbasin 18060005. It drains a watershed of about 390 square miles. Discharge records at this site go back to 1938. Typical flow runs near 0 cfs in July and 38 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 390 sq mi
- Gauge elevation
- 663 ft
- Subbasin (HUC-8)
- 18060005
- Coordinates
- 35.62858, -120.68434
- USGS site number
- 11147500
- Records begin
- 1938-02-10 (88 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 87 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 | 9.8 | 610.4 | |
| February | 0 | 52.8 | 1,124.8 | |
| March | 0.2 | 67.8 | 961.2 | |
| April | 0.2 | 38 | 327.2 | |
| May | 0 | 5.2 | 69.3 | |
| June | 0 | 0 | 10.8 | |
| July | 0 | 0 | 0.5 | |
| August | 0 | 0 | 0 | |
| September | 0 | 0 | 0 | |
| October | 0 | 0 | 0 | |
| November | 0 | 0 | 1.7 | |
| December | 0 | 0 | 105.4 |
All values in cubic feet per second (cfs).
Common questions
- When does Salinas River A Paso Robles, CA normally run highest?
- March, on the long-term record. The median daily flow that month is about 67.8 cfs, against 0 cfs in June, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Salinas River A Paso Robles, CA?
- It depends on the month. In January, half of days historically fall near 9.8 cfs, with the middle 80% of days between 0 and 610.4 cfs. The month-by-month table on this page gives the full range.
- How long has Salinas River A Paso Robles, CA been measured?
- Discharge records at USGS site 11147500 begin in 1938, about 88 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 Salinas River A Paso Robles, CA?
- The gauge sits at 35.62858, -120.68434, in California, in hydrologic subbasin 18060005, at an elevation of about 663 feet, draining roughly 390 square miles.
- Can I use Salinas River A Paso Robles, CA 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
- Nacimiento River below Sapaque C near Bryson, CA
- Nacimiento River below Nacimiento Dam near Bradley, CA
- San Antonio River near Lockwood, CA
- Salinas River near Bradley, CA
- San Lorenzo C below Bitterwater C near King City, CA
- Salinas River near King City, CA
- Salinas River A Soledad, CA
- Arroyo Seco near Greenfield, CA