USGS Streamgage 10296000
W Walker River below L Walker River near Coleville, CA
W Walker River below L Walker River near Coleville, CA is USGS streamgage 10296000 in California, monitoring river discharge in hydrologic subbasin 16050302. It drains a watershed of about 181 square miles. Discharge records at this site go back to 1937. Typical flow runs near 304.4 cfs in July and 279.7 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- California
- Drainage area
- 181 sq mi
- Gauge elevation
- 6,591 ft
- Subbasin (HUC-8)
- 16050302
- Coordinates
- 38.37964, -119.45016
- USGS site number
- 10296000
- Records begin
- 1937-12-11 (89 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 89 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 | 28.7 | 50.7 | 124.5 | |
| February | 34.6 | 59.9 | 117.1 | |
| March | 50.9 | 97.1 | 203 | |
| April | 127 | 279.7 | 558.4 | |
| May | 323.6 | 696.6 | 1,423.4 | |
| June | 274.6 | 832.6 | 1,836.3 | |
| July | 81.2 | 304.4 | 1,168.3 | |
| August | 37.2 | 90.9 | 333.4 | |
| September | 20.7 | 53 | 136.3 | |
| October | 21.7 | 45.5 | 91.9 | |
| November | 26.1 | 48.6 | 108.2 | |
| December | 27.4 | 47.4 | 108.5 |
All values in cubic feet per second (cfs).
Common questions
- When does W Walker River below L Walker River near Coleville, CA normally run highest?
- June, on the long-term record. The median daily flow that month is about 832.6 cfs, against 45.5 cfs in October, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for W Walker River below L Walker River near Coleville, CA?
- It depends on the month. In January, half of days historically fall near 50.7 cfs, with the middle 80% of days between 28.7 and 124.5 cfs. The month-by-month table on this page gives the full range.
- How long has W Walker River below L Walker River near Coleville, CA been measured?
- Discharge records at USGS site 10296000 begin in 1937, about 89 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 W Walker River below L Walker River near Coleville, CA?
- The gauge sits at 38.37964, -119.45016, in California, in hydrologic subbasin 16050302, at an elevation of about 6,591 feet, draining roughly 181 square miles.
- Can I use W Walker River below L Walker River near Coleville, 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.