James River Near Yankton, SD
USGS Site No: 06478513 • James River • Yankton County, SD
James River Near Yankton, SD on the James River is currently at 1,020 cfs (Normal — 42th percentile for this date) . Gage height: 3.17 ft.
Reading from
Historical Percentile Comparison
Today's discharge compared to the long-term record for June 11 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.
| Percentile | Label | CFS Threshold | Today's Flow |
|---|---|---|---|
| 10th | Very Low threshold | 159 | |
| 25th | Low threshold | 589 | |
| 50th (Median) | Normal (median) | 1,240 | Today: 1,020 cfs |
| 75th | High threshold | 3,330 | |
| 95th | Very High threshold | 8,540 |
30-Day Hydrograph
Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.
30-Day Flow History
| Date | Discharge (CFS) | Gage Ht (ft) |
|---|---|---|
| May 28, 2026 | 1,060 | 3.25 |
| May 27, 2026 | 1,090 | 3.31 |
| May 26, 2026 | 1,080 | 3.28 |
| May 25, 2026 | 1,020 | 3.16 |
| May 24, 2026 | 1,010 | 3.15 |
| May 23, 2026 | 1,010 | 3.15 |
| May 22, 2026 | 1,010 | 3.15 |
| May 21, 2026 | 1,040 | 3.20 |
| May 20, 2026 | 1,090 | 3.31 |
| May 19, 2026 | 1,150 | 3.42 |
| May 18, 2026 | 1,190 | 3.50 |
| May 17, 2026 | 1,090 | 3.31 |
| May 16, 2026 | 1,040 | 3.20 |
| May 15, 2026 | 1,050 | 3.23 |
| Apr 20, 2026 | 1,190 | 3.51 |
| Apr 19, 2026 | 1,200 | 3.52 |
| Apr 18, 2026 | 1,190 | 3.51 |
| Apr 17, 2026 | 1,190 | 3.50 |
| Apr 16, 2026 | 1,180 | 3.48 |
| Apr 15, 2026 | 1,180 | 3.49 |
| Apr 14, 2026 | 1,190 | 3.51 |
| Apr 13, 2026 | 1,160 | 3.44 |
| Apr 12, 2026 | 1,150 | 3.42 |
| Apr 11, 2026 | 1,150 | 3.43 |
| Apr 10, 2026 | 1,150 | 3.42 |
| Apr 9, 2026 | 1,130 | 3.39 |
| Apr 8, 2026 | 1,120 | 3.37 |
| Apr 7, 2026 | 1,110 | 3.35 |
| Apr 6, 2026 | 1,100 | 3.34 |
| Apr 5, 2026 | 1,090 | 3.33 |
Station Information
- USGS Site No
- 06478513
- State
- SD
- County
- Yankton County
- Coordinates
- 42.9958, -97.3698
- Drainage Area
- 20,962 mi²
- Datum (ft)
- 1,154.1
- HUC Code
- 10160011
Flood Stage Thresholds
- Action Stage
- 10.0 ft
- Flood Stage
- 12.0 ft
- Moderate Flood
- 16.0 ft
- Major Flood
- 21.0 ft
Currently 8.83 ft below flood stage.
Recent Extremes
- Max discharge
-
3,270 cfsAug 7, 2025
- Min discharge
-
386 cfsMar 4, 2026
- Days at flood stage
- 0
Computed from the local daily-values archive.
Nearby Gauges
-
Missouri River at Yankton, SDUnknown9.0 mi · 0 cfs
-
James River Near Scotland,sdNormal18.8 mi · 1,020 cfs
-
Bow Creek Near Wynot, Nebr.Very Low18.8 mi · 67 cfs
-
Vermillion River Near Wakonda SDUnknown20.5 mi
-
Vermillion River Near Vermillion,sdLow25.7 mi · 86 cfs