USGS Streamgage 11022200
Los Coches C near Lakeside, CA
Los Coches C near Lakeside, CA is USGS streamgage 11022200 in California, monitoring river discharge in hydrologic subbasin 18070304. It drains a watershed of about 12 square miles. Discharge records at this site go back to 1983. Typical flow runs near 0.2 cfs in July and 0.8 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 12 sq mi
- Gauge elevation
- 554 ft
- Subbasin (HUC-8)
- 18070304
- Coordinates
- 32.83616, -116.9003
- USGS site number
- 11022200
- Records begin
- 1983-10-01 (43 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 43 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 | 0.6 | 8 | |
| February | 0.1 | 1.1 | 13.8 | |
| March | 0.1 | 1.1 | 10.3 | |
| April | 0.1 | 0.8 | 4.8 | |
| May | 0.1 | 0.5 | 1.9 | |
| June | 0.1 | 0.3 | 0.8 | |
| July | 0.1 | 0.2 | 0.4 | |
| August | 0.1 | 0.2 | 0.4 | |
| September | 0.1 | 0.2 | 0.4 | |
| October | 0.1 | 0.2 | 0.6 | |
| November | 0.1 | 0.2 | 1.8 | |
| December | 0.1 | 0.4 | 3.8 |
All values in cubic feet per second (cfs).
Common questions
- When does Los Coches C near Lakeside, CA normally run highest?
- February, on the long-term record. The median daily flow that month is about 1.1 cfs, against 0.2 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 Los Coches C near Lakeside, CA?
- It depends on the month. In January, half of days historically fall near 0.6 cfs, with the middle 80% of days between 0.1 and 8 cfs. The month-by-month table on this page gives the full range.
- How long has Los Coches C near Lakeside, CA been measured?
- Discharge records at USGS site 11022200 begin in 1983, about 43 years, covering roughly 9,126 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Los Coches C near Lakeside, CA?
- The gauge sits at 32.83616, -116.9003, in California, in hydrologic subbasin 18070304, at an elevation of about 554 feet, draining roughly 12 square miles.
- Can I use Los Coches C near Lakeside, 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.