USGS Streamgage 11406810
Palermo Cn A Oroville Dam, CA
Palermo Cn A Oroville Dam, CA is USGS streamgage 11406810 in California, monitoring river discharge in hydrologic subbasin 18020159. Discharge records at this site go back to 1968. Typical flow runs near 16.8 cfs in July and 3.6 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- California
- Subbasin (HUC-8)
- 18020159
- Coordinates
- 39.53294, -121.48302
- USGS site number
- 11406810
- Records begin
- 1968-10-01 (58 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 57 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 | 2 | 4.3 | |
| February | 0 | 1.6 | 3.8 | |
| March | 0 | 1.5 | 4.8 | |
| April | 0.1 | 3.6 | 10.9 | |
| May | 5.1 | 12.3 | 19.3 | |
| June | 10.8 | 16 | 21.6 | |
| July | 12.4 | 16.8 | 21.1 | |
| August | 12.8 | 17.6 | 21.3 | |
| September | 11.7 | 17.2 | 20.7 | |
| October | 5.1 | 10.7 | 16.5 | |
| November | 1.4 | 3.5 | 7.7 | |
| December | 0.1 | 2.4 | 4.8 |
All values in cubic feet per second (cfs).
Common questions
- When does Palermo Cn A Oroville Dam, CA normally run highest?
- August, on the long-term record. The median daily flow that month is about 17.6 cfs, against 1.5 cfs in March, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Palermo Cn A Oroville Dam, CA?
- It depends on the month. In January, half of days historically fall near 2 cfs, with the middle 80% of days between 0 and 4.3 cfs. The month-by-month table on this page gives the full range.
- How long has Palermo Cn A Oroville Dam, CA been measured?
- Discharge records at USGS site 11406810 begin in 1968, about 58 years, covering roughly 8,821 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Palermo Cn A Oroville Dam, CA?
- The gauge sits at 39.53294, -121.48302, in California, in hydrologic subbasin 18020159.
- Can I use Palermo Cn A Oroville Dam, 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.