USGS Streamgage 11173800
Indian C near Sunol, CA
Indian C near Sunol, CA is USGS streamgage 11173800 in California, monitoring river discharge in hydrologic subbasin 18050004. It drains a watershed of about 7 square miles. Discharge records at this site go back to 2014. Typical flow runs near 0 cfs in July and 2.2 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 7 sq mi
- Gauge elevation
- 602 ft
- Subbasin (HUC-8)
- 18050004
- Coordinates
- 37.56111, -121.79694
- USGS site number
- 11173800
- Records begin
- 2014-03-12 (12 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 13 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 | 1.4 | 56.9 | |
| February | 0.3 | 2.1 | 50.8 | |
| March | 0.2 | 2.9 | 40.5 | |
| April | 0.2 | 2.2 | 7.7 | |
| May | 0 | 0.8 | 2.1 | |
| June | 0 | 0.2 | 0.8 | |
| July | — | 0 | — | |
| August | — | 0 | — | |
| September | — | 0 | — | |
| October | 0 | 0 | 0.4 | |
| November | 0 | 0 | 0.6 | |
| December | 0 | 0.4 | 18 |
All values in cubic feet per second (cfs).
Common questions
- When does Indian C near Sunol, CA normally run highest?
- March, on the long-term record. The median daily flow that month is about 2.9 cfs, against 0 cfs in July, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Indian C near Sunol, CA?
- It depends on the month. In January, half of days historically fall near 1.4 cfs, with the middle 80% of days between 0.1 and 56.9 cfs. The month-by-month table on this page gives the full range.
- How long has Indian C near Sunol, CA been measured?
- Discharge records at USGS site 11173800 begin in 2014, about 12 years, covering roughly 3,506 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Indian C near Sunol, CA?
- The gauge sits at 37.56111, -121.79694, in California, in hydrologic subbasin 18050004, at an elevation of about 602 feet, draining roughly 7 square miles.
- Can I use Indian C near Sunol, 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.