USGS Streamgage 11071760
Coldwater Canyon C near Corona, CA
Coldwater Canyon C near Corona, CA is USGS streamgage 11071760 in California, monitoring river discharge in hydrologic subbasin 18070203. It drains a watershed of about 4 square miles. Discharge records at this site go back to 2018. Typical flow runs near 1.5 cfs in July and 2.3 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 4 sq mi
- Gauge elevation
- 1,273 ft
- Subbasin (HUC-8)
- 18070203
- Coordinates
- 33.75444, -117.49581
- USGS site number
- 11071760
- Records begin
- 2018-12-04 (8 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 8 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 | — | 1.8 | — | |
| February | — | 2.3 | — | |
| March | — | 2.7 | — | |
| April | — | 2.3 | — | |
| May | — | 1.8 | — | |
| June | — | 1.8 | — | |
| July | — | 1.5 | — | |
| August | — | 1.1 | — | |
| September | — | 1 | — | |
| October | — | 0.9 | — | |
| November | — | 1 | — | |
| December | — | 1.1 | — |
All values in cubic feet per second (cfs).
Common questions
- When does Coldwater Canyon C near Corona, CA normally run highest?
- March, on the long-term record. The median daily flow that month is about 2.7 cfs, against 0.9 cfs in October, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- How long has Coldwater Canyon C near Corona, CA been measured?
- Discharge records at USGS site 11071760 begin in 2018, about 8 years, covering roughly 2,798 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Coldwater Canyon C near Corona, CA?
- The gauge sits at 33.75444, -117.49581, in California, in hydrologic subbasin 18070203, at an elevation of about 1,273 feet, draining roughly 4 square miles.
- Can I use Coldwater Canyon C near Corona, 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.