USGS Streamgage 10302025
Walker River near Mouth at Walker Lake, NV
Walker River near Mouth at Walker Lake, NV is USGS streamgage 10302025 in Nevada, monitoring river discharge in hydrologic subbasin 16050304. It drains a watershed of about 3,134 square miles. Discharge records at this site go back to 2004. Typical flow runs near 1.6 cfs in July and 9.2 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Nevada
- Drainage area
- 3,134 sq mi
- Gauge elevation
- 3,940 ft
- Subbasin (HUC-8)
- 16050304
- Coordinates
- 38.79103, -118.72709
- USGS site number
- 10302025
- Records begin
- 2004-10-01 (22 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 22 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 | 0.4 | 6 | 194 | |
| February | 0.7 | 27.1 | 302.3 | |
| March | 0.8 | 16.2 | 763.7 | |
| April | 0.6 | 9.2 | 850 | |
| May | 0.4 | 13.2 | 1,253.2 | |
| June | 0 | 17.4 | 2,076.7 | |
| July | 0 | 1.6 | 1,415.3 | |
| August | 0 | 3.6 | 292.9 | |
| September | 0 | 3.7 | 179.8 | |
| October | 0 | 1.4 | 104 | |
| November | 0.2 | 6.9 | 137.8 | |
| December | 0.3 | 4.4 | 106.8 |
All values in cubic feet per second (cfs).
Common questions
- When does Walker River near Mouth at Walker Lake, NV normally run highest?
- February, on the long-term record. The median daily flow that month is about 27.1 cfs, against 1.4 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 Walker River near Mouth at Walker Lake, NV?
- It depends on the month. In January, half of days historically fall near 6 cfs, with the middle 80% of days between 0.4 and 194 cfs. The month-by-month table on this page gives the full range.
- How long has Walker River near Mouth at Walker Lake, NV been measured?
- Discharge records at USGS site 10302025 begin in 2004, about 22 years, covering roughly 6,446 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Walker River near Mouth at Walker Lake, NV?
- The gauge sits at 38.79103, -118.72709, in Nevada, in hydrologic subbasin 16050304, at an elevation of about 3,940 feet, draining roughly 3,134 square miles.
- Can I use Walker River near Mouth at Walker Lake, NV 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.