USGS Streamgage 11170000
Coyote C near Madrone, CA
Coyote C near Madrone, CA is USGS streamgage 11170000 in California, monitoring river discharge in hydrologic subbasin 18050003. It drains a watershed of about 196 square miles. Discharge records at this site go back to 1903. Typical flow runs near 19.8 cfs in July and 47.5 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 196 sq mi
- Gauge elevation
- 372 ft
- Subbasin (HUC-8)
- 18050003
- Coordinates
- 37.16824, -121.64963
- USGS site number
- 11170000
- Records begin
- 1903-01-27 (123 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 | — | 70.6 | — | |
| February | — | 161.9 | — | |
| March | — | 66.3 | — | |
| April | — | 47.5 | — | |
| May | — | 29.3 | — | |
| June | — | 22.4 | — | |
| July | — | 19.8 | — | |
| August | — | 25.3 | — | |
| September | — | 21.6 | — | |
| October | — | 22.9 | — | |
| November | — | 25 | — | |
| December | — | 37.3 | — |
All values in cubic feet per second (cfs).
Common questions
- When does Coyote C near Madrone, CA normally run highest?
- February, on the long-term record. The median daily flow that month is about 161.9 cfs, against 19.8 cfs in July, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- How long has Coyote C near Madrone, CA been measured?
- Discharge records at USGS site 11170000 begin in 1903, about 123 years, covering roughly 1,643 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Coyote C near Madrone, CA?
- The gauge sits at 37.16824, -121.64963, in California, in hydrologic subbasin 18050003, at an elevation of about 372 feet, draining roughly 196 square miles.
- Can I use Coyote C near Madrone, 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
- Coyote C below Coyote Ranch Rd near Coyote, CA
- Coyote C near Edenvale, CA
- Coyote C Ab Hwy 237 A Milpitas, CA
- San Francisquito C A Stanford University, CA
- Guadalupe River above Hwy 101 A San Jose, CA
- Saratoga C A Saratoga, CA
- Coyote C near Gilroy, CA
- Coyote C below Coyote Reservoir near San Martin, CA