USGS Streamgage 11447360
Arcade C near del Paso Heights, CA
Arcade C near del Paso Heights, CA is USGS streamgage 11447360 in California, monitoring river discharge in hydrologic subbasin 18020111. It drains a watershed of about 31 square miles. Discharge records at this site go back to 1963. Typical flow runs near 1.4 cfs in July and 1.9 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 31 sq mi
- Gauge elevation
- 49 ft
- Subbasin (HUC-8)
- 18020111
- Coordinates
- 38.64183, -121.3827
- USGS site number
- 11447360
- Records begin
- 1963-08-01 (63 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 63 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 | 3 | 162.3 | |
| February | 0.1 | 3.1 | 159.3 | |
| March | 0.2 | 2.5 | 84.6 | |
| April | 0.1 | 1.9 | 35.2 | |
| May | 0 | 1.5 | 8.8 | |
| June | 0 | 1.5 | 4.7 | |
| July | 0 | 1.4 | 4.3 | |
| August | 0 | 1.5 | 4.1 | |
| September | 0 | 1 | 3.9 | |
| October | 0 | 0.6 | 10.7 | |
| November | 0 | 0.7 | 55.5 | |
| December | 0 | 2.4 | 134.7 |
All values in cubic feet per second (cfs).
Common questions
- When does Arcade C near del Paso Heights, CA normally run highest?
- February, on the long-term record. The median daily flow that month is about 3.1 cfs, against 0.6 cfs in October, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Arcade C near del Paso Heights, CA?
- It depends on the month. In January, half of days historically fall near 3 cfs, with the middle 80% of days between 0 and 162.3 cfs. The month-by-month table on this page gives the full range.
- How long has Arcade C near del Paso Heights, CA been measured?
- Discharge records at USGS site 11447360 begin in 1963, about 63 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 Arcade C near del Paso Heights, CA?
- The gauge sits at 38.64183, -121.3827, in California, in hydrologic subbasin 18020111, at an elevation of about 49 feet, draining roughly 31 square miles.
- Can I use Arcade C near del Paso Heights, 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.