USGS Streamgage 11200800
Deer C near Fountain Springs, CA
Deer C near Fountain Springs, CA is USGS streamgage 11200800 in California, monitoring river discharge in hydrologic subbasin 18030005. It drains a watershed of about 83 square miles. Discharge records at this site go back to 1966. Typical flow runs near 4 cfs in July and 36.5 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 83 sq mi
- Gauge elevation
- 989 ft
- Subbasin (HUC-8)
- 18030005
- Coordinates
- 35.94162, -118.82287
- USGS site number
- 11200800
- Records begin
- 1966-12-06 (60 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 58 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 | 7.8 | 17.7 | 102.3 | |
| February | 10.1 | 24.8 | 154.6 | |
| March | 11.6 | 38.2 | 179.8 | |
| April | 7.7 | 36.5 | 155.5 | |
| May | 4.5 | 23.8 | 98.1 | |
| June | 0.8 | 11.9 | 50.9 | |
| July | 0 | 4 | 22.7 | |
| August | 0 | 1.2 | 11.2 | |
| September | 0 | 1.4 | 9.5 | |
| October | 0.9 | 3.9 | 12.7 | |
| November | 3.8 | 7.6 | 20 | |
| December | 5.9 | 11.8 | 39.6 |
All values in cubic feet per second (cfs).
Common questions
- When does Deer C near Fountain Springs, CA normally run highest?
- March, on the long-term record. The median daily flow that month is about 38.2 cfs, against 1.2 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 Deer C near Fountain Springs, CA?
- It depends on the month. In January, half of days historically fall near 17.7 cfs, with the middle 80% of days between 7.8 and 102.3 cfs. The month-by-month table on this page gives the full range.
- How long has Deer C near Fountain Springs, CA been measured?
- Discharge records at USGS site 11200800 begin in 1966, about 60 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 Deer C near Fountain Springs, CA?
- The gauge sits at 35.94162, -118.82287, in California, in hydrologic subbasin 18030005, at an elevation of about 989 feet, draining roughly 83 square miles.
- Can I use Deer C near Fountain Springs, 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.