USGS Streamgage 11042400
Temecula C near Aguanga, CA
Temecula C near Aguanga, CA is USGS streamgage 11042400 in California, monitoring river discharge in hydrologic subbasin 18070302. It drains a watershed of about 131 square miles. Discharge records at this site go back to 1957. Typical flow runs near 0.2 cfs in July and 3.6 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 131 sq mi
- Gauge elevation
- 1,496 ft
- Subbasin (HUC-8)
- 18070302
- Coordinates
- 33.4592, -116.92363
- USGS site number
- 11042400
- Records begin
- 1957-08-01 (69 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 69 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 | 0.4 | 2.5 | 18.3 | |
| February | 0.7 | 4 | 35.5 | |
| March | 0.8 | 5.1 | 38.5 | |
| April | 0.4 | 3.6 | 23.3 | |
| May | 0.1 | 1.7 | 9.5 | |
| June | 0 | 0.7 | 5.6 | |
| July | 0 | 0.2 | 4.1 | |
| August | 0 | 0.1 | 3.5 | |
| September | 0 | 0.2 | 3.4 | |
| October | 0 | 0.4 | 3.7 | |
| November | 0 | 0.8 | 4.8 | |
| December | 0 | 1.5 | 7.9 |
All values in cubic feet per second (cfs).
Common questions
- When does Temecula C near Aguanga, CA normally run highest?
- March, on the long-term record. The median daily flow that month is about 5.1 cfs, against 0.1 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Temecula C near Aguanga, CA?
- It depends on the month. In January, half of days historically fall near 2.5 cfs, with the middle 80% of days between 0.4 and 18.3 cfs. The month-by-month table on this page gives the full range.
- How long has Temecula C near Aguanga, CA been measured?
- Discharge records at USGS site 11042400 begin in 1957, about 69 years, covering roughly 9,072 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Temecula C near Aguanga, CA?
- The gauge sits at 33.4592, -116.92363, in California, in hydrologic subbasin 18070302, at an elevation of about 1,496 feet, draining roughly 131 square miles.
- Can I use Temecula C near Aguanga, 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.