James River Near Yankton, SD

USGS Site No: 06478513James 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

1,020
CFS Discharge
3.17
Gage Height (ft)
Normal
Flow Condition
Normal
Flood Status

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.

21k 11k 0 cfs Apr 5 May 28
10th–95th historical Day-of-year median Recent discharge

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
Coordinates
42.9958, -97.3698
Drainage Area
20,962 mi²
Datum (ft)
1,154.1
HUC Code
10160011
View on USGS NWIS →

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 cfs
Aug 7, 2025
Min discharge
386 cfs
Mar 4, 2026
Days at flood stage
0

Computed from the local daily-values archive.

Nearby Gauges