USGS Streamgage 11140585
Santa Maria River A Suey Crossing near Santa Maria, CA
Santa Maria River A Suey Crossing near Santa Maria, CA is USGS streamgage 11140585 in California, monitoring river discharge in hydrologic subbasin 18060008. It drains a watershed of about 1,636 square miles. Discharge records at this site go back to 1999. Typical flow runs near 0 cfs in July and 0 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 1,636 sq mi
- Gauge elevation
- 228 ft
- Subbasin (HUC-8)
- 18060008
- Coordinates
- 34.9683, -120.40401
- USGS site number
- 11140585
- Records begin
- 1999-04-01 (27 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 27 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 | 0 | 218.7 | |
| February | 0 | 0 | 370.4 | |
| March | 0 | 0 | 690.9 | |
| April | 0 | 0 | 173.6 | |
| May | 0 | 0 | 87.4 | |
| June | 0 | 0 | 83.7 | |
| July | 0 | 0 | 97.4 | |
| August | 0 | 0 | 105.5 | |
| September | 0 | 0 | 145 | |
| October | 0 | 0 | 63.4 | |
| November | 0 | 0 | 80.7 | |
| December | 0 | 0 | 68.4 |
All values in cubic feet per second (cfs).
Common questions
- When does Santa Maria River A Suey Crossing near Santa Maria, CA normally run highest?
- January, on the long-term record. The median daily flow that month is about 0 cfs, against 0 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Santa Maria River A Suey Crossing near Santa Maria, CA?
- It depends on the month. In January, half of days historically fall near 0 cfs, with the middle 80% of days between 0 and 218.7 cfs. The month-by-month table on this page gives the full range.
- How long has Santa Maria River A Suey Crossing near Santa Maria, CA been measured?
- Discharge records at USGS site 11140585 begin in 1999, about 27 years, covering roughly 7,239 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Santa Maria River A Suey Crossing near Santa Maria, CA?
- The gauge sits at 34.9683, -120.40401, in California, in hydrologic subbasin 18060008, at an elevation of about 228 feet, draining roughly 1,636 square miles.
- Can I use Santa Maria River A Suey Crossing near Santa Maria, 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.