USGS Streamgage 11383500
Deer C near Vina, CA
Deer C near Vina, CA is USGS streamgage 11383500 in California, monitoring river discharge in hydrologic subbasin 18020157. It drains a watershed of about 208 square miles. Discharge records at this site go back to 1911. Typical flow runs near 104.3 cfs in July and 430.8 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 208 sq mi
- Gauge elevation
- 482 ft
- Subbasin (HUC-8)
- 18020157
- Coordinates
- 40.01402, -121.94829
- USGS site number
- 11383500
- Records begin
- 1911-10-01 (115 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 115 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 | 107.2 | 233.1 | 1,265.1 | |
| February | 137.9 | 331.3 | 1,444.1 | |
| March | 180.2 | 407.2 | 1,173.7 | |
| April | 175.8 | 430.8 | 998.5 | |
| May | 123.8 | 286.8 | 770.9 | |
| June | 90.4 | 154.3 | 384.4 | |
| July | 72.9 | 104.3 | 180.7 | |
| August | 65.1 | 90.1 | 139.1 | |
| September | 65.1 | 90.3 | 124.9 | |
| October | 69.6 | 96.2 | 139.2 | |
| November | 80 | 117.3 | 306.5 | |
| December | 89.5 | 152.1 | 902.5 |
All values in cubic feet per second (cfs).
Common questions
- When does Deer C near Vina, CA normally run highest?
- April, on the long-term record. The median daily flow that month is about 430.8 cfs, against 90.1 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 Deer C near Vina, CA?
- It depends on the month. In January, half of days historically fall near 233.1 cfs, with the middle 80% of days between 107.2 and 1,265.1 cfs. The month-by-month table on this page gives the full range.
- How long has Deer C near Vina, CA been measured?
- Discharge records at USGS site 11383500 begin in 1911, about 115 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 Vina, CA?
- The gauge sits at 40.01402, -121.94829, in California, in hydrologic subbasin 18020157, at an elevation of about 482 feet, draining roughly 208 square miles.
- Can I use Deer C near Vina, 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.