USGS Streamgage 11451292
Indian Valley Ph Intake near Clearlake Oaks, CA
Indian Valley Ph Intake near Clearlake Oaks, CA is USGS streamgage 11451292 in California, monitoring river discharge in hydrologic subbasin 18020116. It drains a watershed of about 120 square miles. Discharge records at this site go back to 2009. Typical flow runs near 195.4 cfs in July and 12.8 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- California
- Drainage area
- 120 sq mi
- Gauge elevation
- 1,360 ft
- Subbasin (HUC-8)
- 18020116
- Coordinates
- 39.07906, -122.53554
- USGS site number
- 11451292
- Records begin
- 2009-10-01 (17 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 | — | 10.4 | — | |
| February | — | 10.5 | — | |
| March | — | 10.5 | — | |
| April | — | 12.8 | — | |
| May | — | 185.7 | — | |
| June | — | 179.3 | — | |
| July | — | 195.4 | — | |
| August | — | 181.5 | — | |
| September | — | 132.9 | — | |
| October | — | 11.2 | — | |
| November | — | 11 | — | |
| December | — | 10.5 | — |
All values in cubic feet per second (cfs).
Common questions
- When does Indian Valley Ph Intake near Clearlake Oaks, CA normally run highest?
- July, on the long-term record. The median daily flow that month is about 195.4 cfs, against 10.4 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- How long has Indian Valley Ph Intake near Clearlake Oaks, CA been measured?
- Discharge records at USGS site 11451292 begin in 2009, about 17 years, covering roughly 1,611 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Indian Valley Ph Intake near Clearlake Oaks, CA?
- The gauge sits at 39.07906, -122.53554, in California, in hydrologic subbasin 18020116, at an elevation of about 1,360 feet, draining roughly 120 square miles.
- Can I use Indian Valley Ph Intake near Clearlake Oaks, 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.