USGS Streamgage 11162500
Pescadero C near Pescadero, CA
Pescadero C near Pescadero, CA is USGS streamgage 11162500 in California, monitoring river discharge in hydrologic subbasin 18050006. It drains a watershed of about 46 square miles. Discharge records at this site go back to 1951. Typical flow runs near 3.9 cfs in July and 22.8 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 46 sq mi
- Gauge elevation
- 67 ft
- Subbasin (HUC-8)
- 18050006
- Coordinates
- 37.26073, -122.32881
- USGS site number
- 11162500
- Records begin
- 1951-04-14 (75 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.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 3.7 | 24 | 302.6 | |
| February | 6.1 | 38.2 | 348.1 | |
| March | 7.4 | 42.9 | 233.5 | |
| April | 6.1 | 22.8 | 115.6 | |
| May | 3.6 | 12.1 | 39.2 | |
| June | 2.2 | 6.8 | 17.8 | |
| July | 1.1 | 3.9 | 10 | |
| August | 0.7 | 2.9 | 6.3 | |
| September | 0.5 | 2.2 | 4.9 | |
| October | 0.7 | 2.5 | 7.5 | |
| November | 1.5 | 4 | 22.1 | |
| December | 2.9 | 10.4 | 134.5 |
All values in cubic feet per second (cfs).
Common questions
- When does Pescadero C near Pescadero, CA normally run highest?
- March, on the long-term record. The median daily flow that month is about 42.9 cfs, against 2.2 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Pescadero C near Pescadero, CA?
- It depends on the month. In January, half of days historically fall near 24 cfs, with the middle 80% of days between 3.7 and 302.6 cfs. The month-by-month table on this page gives the full range.
- How long has Pescadero C near Pescadero, CA been measured?
- Discharge records at USGS site 11162500 begin in 1951, about 75 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 Pescadero C near Pescadero, CA?
- The gauge sits at 37.26073, -122.32881, in California, in hydrologic subbasin 18050006, at an elevation of about 67 feet, draining roughly 46 square miles.
- Can I use Pescadero C near Pescadero, 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.