USGS Streamgage 10337500
Truckee River A Tahoe City, CA
Truckee River A Tahoe City, CA is USGS streamgage 10337500 in California, monitoring river discharge in hydrologic subbasin 16050102. It drains a watershed of about 507 square miles. Discharge records at this site go back to 1895. Typical flow runs near 256.5 cfs in July and 60.8 cfs in April, with the higher of the two arriving in July. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
Gauge details
- State
- California
- Drainage area
- 507 sq mi
- Gauge elevation
- 6,221 ft
- Subbasin (HUC-8)
- 16050102
- Coordinates
- 39.16627, -120.14434
- USGS site number
- 10337500
- Records begin
- 1895-07-01 (131 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Truckee River A Tahoe City, CA. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 53.5 | 76.2 | 92.6 | ||
| 46.6 | 72.2 | 97.7 | ||
| 40.8 | 68.4 | 101 | ||
| 37.1 | 66.6 | 104 | ||
| 34.8 | 66 | 111 | ||
| 30.6 | 65.4 | 118 | ||
| 26.7 | 65.2 | 124 | ||
| 22.7 | 65.8 | 130 | ||
| 19.2 | 66.6 | 139 | ||
| 16.7 | 68 | 147 | ||
| 7.7 | 72.8 | 146 | ||
| 7.3 | 77 | 166 | ||
| 6.3 | 74.1 | 152 | ||
| 6.8 | 68.9 | 145 |
All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 117 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 | 78.6 | 432.5 | |
| February | 0.1 | 81.1 | 746.9 | |
| March | 0 | 73.7 | 722.2 | |
| April | 0 | 60.8 | 696.9 | |
| May | 0 | 66.4 | 622 | |
| June | 0 | 93.9 | 731.1 | |
| July | 30 | 256.5 | 474.5 | |
| August | 35 | 308.8 | 481.7 | |
| September | 7.1 | 235.2 | 454.5 | |
| October | 0.3 | 116.3 | 353.7 | |
| November | 0 | 132.9 | 338.2 | |
| December | 0 | 126.9 | 355.4 |
All values in cubic feet per second (cfs).
Common questions
- When does Truckee River A Tahoe City, CA normally run highest?
- August, on the long-term record. The median daily flow that month is about 308.8 cfs, against 60.8 cfs in April, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Truckee River A Tahoe City, CA?
- It depends on the month. In January, half of days historically fall near 78.6 cfs, with the middle 80% of days between 0 and 432.5 cfs. The month-by-month table on this page gives the full range.
- How long has Truckee River A Tahoe City, CA been measured?
- Discharge records at USGS site 10337500 begin in 1895, about 131 years, covering roughly 9,130 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Truckee River A Tahoe City, CA?
- Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
- Where is Truckee River A Tahoe City, CA?
- The gauge sits at 39.16627, -120.14434, in California, in hydrologic subbasin 16050102, at an elevation of about 6,221 feet, draining roughly 507 square miles.
- Can I use Truckee River A Tahoe City, 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.