USGS Streamgage 11336585
Laguna C near Elk Grove, CA
Laguna C near Elk Grove, CA is USGS streamgage 11336585 in California, monitoring river discharge in hydrologic subbasin 18020163. It drains a watershed of about 32 square miles. Discharge records at this site go back to 1995. Typical flow runs near 0.9 cfs in July and 0.6 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- California
- Drainage area
- 32 sq mi
- Gauge elevation
- 38 ft
- Subbasin (HUC-8)
- 18020163
- Coordinates
- 38.42322, -121.35325
- USGS site number
- 11336585
- Records begin
- 1995-10-01 (31 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 24 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 | 3.3 | 155.2 | |
| February | 0.1 | 3.7 | 185.1 | |
| March | 0 | 2.6 | 65.6 | |
| April | 0 | 0.6 | 18.5 | |
| May | 0 | 0.5 | 2.6 | |
| June | 0 | 0.5 | 1.6 | |
| July | 0 | 0.9 | 2.1 | |
| August | 0.1 | 1.1 | 2.8 | |
| September | 0.1 | 0.8 | 2.1 | |
| October | 0 | 0.3 | 2.6 | |
| November | 0 | 0.2 | 5.7 | |
| December | 0 | 1.3 | 85.5 |
All values in cubic feet per second (cfs).
Common questions
- When does Laguna C near Elk Grove, CA normally run highest?
- February, on the long-term record. The median daily flow that month is about 3.7 cfs, against 0.2 cfs in November, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Laguna C near Elk Grove, CA?
- It depends on the month. In January, half of days historically fall near 3.3 cfs, with the middle 80% of days between 0 and 155.2 cfs. The month-by-month table on this page gives the full range.
- How long has Laguna C near Elk Grove, CA been measured?
- Discharge records at USGS site 11336585 begin in 1995, about 31 years, covering roughly 6,292 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Laguna C near Elk Grove, CA?
- The gauge sits at 38.42322, -121.35325, in California, in hydrologic subbasin 18020163, at an elevation of about 38 feet, draining roughly 32 square miles.
- Can I use Laguna C near Elk Grove, 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.
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- Cache C Outflow From Settling Basin near Woodland, CA
- Cache C Total Flow From Settling Bas near Wood'ld, CA
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