USGS Streamgage 10323425
Humboldt River at Old US 40 Brg at Dunphy, NV
Humboldt River at Old US 40 Brg at Dunphy, NV is USGS streamgage 10323425 in Nevada, monitoring river discharge in hydrologic subbasin 16040105. It drains a watershed of about 7,470 square miles. Discharge records at this site go back to 1962. Typical flow runs near 161.6 cfs in July and 453.2 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Nevada
- Drainage area
- 7,470 sq mi
- Gauge elevation
- 4,620 ft
- Subbasin (HUC-8)
- 16040105
- Coordinates
- 40.70547, -116.53092
- USGS site number
- 10323425
- Records begin
- 1962-02-12 (64 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 36 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 | 42.5 | 102.1 | 332.2 | |
| February | 72.5 | 164.9 | 506.3 | |
| March | 110.3 | 341.5 | 1,323.8 | |
| April | 115.9 | 453.2 | 2,113.7 | |
| May | 130.1 | 569 | 2,591 | |
| June | 120.1 | 814.4 | 2,599 | |
| July | 16.3 | 161.6 | 1,022.8 | |
| August | 4.6 | 22.8 | 156.8 | |
| September | 4.2 | 19.3 | 65.8 | |
| October | 11.6 | 39.8 | 100.2 | |
| November | 26.3 | 61.9 | 131.8 | |
| December | 34.9 | 75.8 | 193.3 |
All values in cubic feet per second (cfs).
Common questions
- When does Humboldt River at Old US 40 Brg at Dunphy, NV normally run highest?
- June, on the long-term record. The median daily flow that month is about 814.4 cfs, against 19.3 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 Humboldt River at Old US 40 Brg at Dunphy, NV?
- It depends on the month. In January, half of days historically fall near 102.1 cfs, with the middle 80% of days between 42.5 and 332.2 cfs. The month-by-month table on this page gives the full range.
- How long has Humboldt River at Old US 40 Brg at Dunphy, NV been measured?
- Discharge records at USGS site 10323425 begin in 1962, about 64 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 Humboldt River at Old US 40 Brg at Dunphy, NV?
- The gauge sits at 40.70547, -116.53092, in Nevada, in hydrologic subbasin 16040105, at an elevation of about 4,620 feet, draining roughly 7,470 square miles.
- Can I use Humboldt River at Old US 40 Brg at Dunphy, 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.