USGS Streamgage 06479010
Vermillion River near Vermillion, SD
Vermillion River near Vermillion, SD is USGS streamgage 06479010 in South Dakota, monitoring river discharge in hydrologic subbasin 10170102. It sits on the Vermillion River, alongside 1 other gauge Rivermatics tracks on the same river. It drains a watershed of about 2,254 square miles. Discharge records at this site go back to 1983. Typical flow runs near 186.3 cfs in July and 366.2 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
Gauge details
- State
- South Dakota
- Drainage area
- 2,254 sq mi
- Gauge elevation
- 1,137 ft
- Subbasin (HUC-8)
- 10170102
- Coordinates
- 42.81722, -96.92421
- USGS site number
- 06479010
- Records begin
- 1983-10-01 (43 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Vermillion River near Vermillion, SD. 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 |
|---|---|---|---|---|
| 4.3 | 4.9 | 5.5 | ||
| 4 | 4.7 | 5.4 | ||
| 3.8 | 4.5 | 5.4 | ||
| 3.8 | 4.9 | 6.8 | ||
| 3.6 | 4.8 | 7.6 | ||
| 3.8 | 5.3 | 9.9 | ||
| 4.6 | 7.7 | 24.5 | ||
| 4.9 | 8.5 | 39.5 | ||
| 4.4 | 8.1 | 44.5 | ||
| 3.9 | 7.5 | 39.2 | ||
| 3.8 | 7.5 | 36.4 | ||
| 3.4 | 6.8 | 32.5 | ||
| 3.2 | 6.5 | 25.3 | ||
| 3.1 | 6.4 | 22.4 |
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 43 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 | 10.8 | 49 | 168.6 | |
| February | 12.4 | 58.2 | 359.6 | |
| March | 42.2 | 225.5 | 1,927.8 | |
| April | 53.2 | 366.2 | 2,752.3 | |
| May | 66.7 | 364.9 | 2,126.1 | |
| June | 53.7 | 361 | 2,790.7 | |
| July | 36.4 | 186.3 | 1,437.6 | |
| August | 14.5 | 92.8 | 464.7 | |
| September | 8.2 | 81.8 | 723.1 | |
| October | 9.3 | 73.4 | 785.5 | |
| November | 11.6 | 80.5 | 492.1 | |
| December | 9.6 | 61.3 | 287.3 |
All values in cubic feet per second (cfs).
Common questions
- When does Vermillion River near Vermillion, SD normally run highest?
- April, on the long-term record. The median daily flow that month is about 366.2 cfs, against 49 cfs in January, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Vermillion River near Vermillion, SD?
- It depends on the month. In January, half of days historically fall near 49 cfs, with the middle 80% of days between 10.8 and 168.6 cfs. The month-by-month table on this page gives the full range.
- How long has Vermillion River near Vermillion, SD been measured?
- Discharge records at USGS site 06479010 begin in 1983, about 43 years, covering roughly 9,096 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Vermillion River near Vermillion, SD?
- 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 Vermillion River near Vermillion, SD?
- The gauge sits at 42.81722, -96.92421, in South Dakota, in hydrologic subbasin 10170102, at an elevation of about 1,137 feet, draining roughly 2,254 square miles.
- Can I use Vermillion River near Vermillion, SD 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.
Upstream and downstream on the Vermillion River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Vermillion River in full.
- Vermillion River near Wakonda, SD 2,121 sq mi
- Vermillion River near Vermillion, SD this page