USGS Streamgage 11252975
San Joaquin River A Skaggs Br near Ripperdan, CA
San Joaquin River A Skaggs Br near Ripperdan, CA is USGS streamgage 11252975 in California, monitoring river discharge in hydrologic subbasin 18040001. It drains a watershed of about 1,809 square miles. Discharge records at this site go back to 2017. Typical flow runs near 229.3 cfs in July and 276.2 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 1,809 sq mi
- Gauge elevation
- 210 ft
- Subbasin (HUC-8)
- 18040001
- Coordinates
- 36.82194, -120.05944
- USGS site number
- 11252975
- Records begin
- 2017-10-01 (9 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 5 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 | — | 297.8 | — | |
| February | — | 310.6 | — | |
| March | — | 266.1 | — | |
| April | — | 276.2 | — | |
| May | — | 318.2 | — | |
| June | — | 243.7 | — | |
| July | — | 229.3 | — | |
| August | — | 243.6 | — | |
| September | — | 243.4 | — | |
| October | — | 246.4 | — | |
| November | — | 271.7 | — | |
| December | — | 286.1 | — |
All values in cubic feet per second (cfs).
Common questions
- When does San Joaquin River A Skaggs Br near Ripperdan, CA normally run highest?
- May, on the long-term record. The median daily flow that month is about 318.2 cfs, against 229.3 cfs in July, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- How long has San Joaquin River A Skaggs Br near Ripperdan, CA been measured?
- Discharge records at USGS site 11252975 begin in 2017, about 9 years, covering roughly 1,826 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is San Joaquin River A Skaggs Br near Ripperdan, CA?
- The gauge sits at 36.82194, -120.05944, in California, in hydrologic subbasin 18040001, at an elevation of about 210 feet, draining roughly 1,809 square miles.
- Can I use San Joaquin River A Skaggs Br near Ripperdan, 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
- San Joaquin River A Gravelly Ford Cn near Kerman, CA
- San Joaquin River below Chowchilla Cn Intake near Mendota
- San Joaquin River near Mendota, CA
- San Joaquin River near Stevinson, CA
- Salt Slough A Hwy 165 near Stevinson, CA
- San Joaquin River A Fremont Ford Bridge, CA
- Mud Slough near Gustine, CA
- San Joaquin River Ab Merced River near Newman, CA