USGS Streamgage 11463170
Big Sulphur C A G Resort near Cloverdale, CA
Big Sulphur C A G Resort near Cloverdale, CA is USGS streamgage 11463170 in California, monitoring river discharge in hydrologic subbasin 18010110. It drains a watershed of about 13 square miles. Discharge records at this site go back to 1980. Typical flow runs near 2.1 cfs in July and 17.7 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- California
- Drainage area
- 13 sq mi
- Gauge elevation
- 1,430 ft
- Subbasin (HUC-8)
- 18010110
- Coordinates
- 38.79764, -122.80246
- USGS site number
- 11463170
- Records begin
- 1980-10-01 (46 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 46 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 | 4.6 | 29.3 | 296.1 | |
| February | 8.5 | 32.3 | 373.1 | |
| March | 10.1 | 33.3 | 272.1 | |
| April | 7.7 | 17.7 | 95.6 | |
| May | 3.9 | 8.8 | 28.4 | |
| June | 1.8 | 4.6 | 13.5 | |
| July | 0.8 | 2.1 | 4.9 | |
| August | 0.4 | 1.1 | 2.2 | |
| September | 0.4 | 0.9 | 1.7 | |
| October | 0.4 | 1.1 | 6.4 | |
| November | 1 | 3.5 | 56.7 | |
| December | 2.4 | 17 | 271.4 |
All values in cubic feet per second (cfs).
Common questions
- When does Big Sulphur C A G Resort near Cloverdale, CA normally run highest?
- March, on the long-term record. The median daily flow that month is about 33.3 cfs, against 0.9 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Big Sulphur C A G Resort near Cloverdale, CA?
- It depends on the month. In January, half of days historically fall near 29.3 cfs, with the middle 80% of days between 4.6 and 296.1 cfs. The month-by-month table on this page gives the full range.
- How long has Big Sulphur C A G Resort near Cloverdale, CA been measured?
- Discharge records at USGS site 11463170 begin in 1980, about 46 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 Big Sulphur C A G Resort near Cloverdale, CA?
- The gauge sits at 38.79764, -122.80246, in California, in hydrologic subbasin 18010110, at an elevation of about 1,430 feet, draining roughly 13 square miles.
- Can I use Big Sulphur C A G Resort near Cloverdale, 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.