USGS Streamgage 11471106
Potter Valley Irrig Cn E6 near Potter Valley, CA
Potter Valley Irrig Cn E6 near Potter Valley, CA is USGS streamgage 11471106 in California, monitoring river discharge in hydrologic subbasin 18010110. Discharge records at this site go back to 1975. Typical flow runs near 2.3 cfs in July and 0.3 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- California
- Subbasin (HUC-8)
- 18010110
- Coordinates
- 39.36155, -123.12834
- USGS site number
- 11471106
- Records begin
- 1975-10-01 (51 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 50 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 | 0.1 | 0.6 | |
| February | 0 | 0.1 | 0.5 | |
| March | 0 | 0.2 | 2.6 | |
| April | 0 | 0.3 | 8.7 | |
| May | 0 | 0.5 | 18.3 | |
| June | 0.1 | 1.7 | 21.2 | |
| July | 0.2 | 2.3 | 19 | |
| August | 0.1 | 1.2 | 21 | |
| September | 0 | 0.7 | 19.2 | |
| October | 0 | 0.4 | 8.3 | |
| November | 0 | 0.3 | 2.4 | |
| December | 0 | 0.1 | 1.3 |
All values in cubic feet per second (cfs).
Common questions
- When does Potter Valley Irrig Cn E6 near Potter Valley, CA normally run highest?
- July, on the long-term record. The median daily flow that month is about 2.3 cfs, against 0.1 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Potter Valley Irrig Cn E6 near Potter Valley, CA?
- It depends on the month. In January, half of days historically fall near 0.1 cfs, with the middle 80% of days between 0 and 0.6 cfs. The month-by-month table on this page gives the full range.
- How long has Potter Valley Irrig Cn E6 near Potter Valley, CA been measured?
- Discharge records at USGS site 11471106 begin in 1975, about 51 years, covering roughly 8,456 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Potter Valley Irrig Cn E6 near Potter Valley, CA?
- The gauge sits at 39.36155, -123.12834, in California, in hydrologic subbasin 18010110.
- Can I use Potter Valley Irrig Cn E6 near Potter Valley, 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.