USGS Streamgage 06467500
Missouri River at Yankton, SD
Missouri River at Yankton, SD is USGS streamgage 06467500, monitoring river discharge in hydrologic subbasin 10170101. It drains a watershed of about 279,500 square miles. Discharge records at this site go back to 1881. Typical flow runs near 32,254.8 cfs in July and 25,656.7 cfs in April, with the higher of the two arriving in July.
Gauge details
- Drainage area
- 279,500 sq mi
- Gauge elevation
- 1,154 ft
- Subbasin (HUC-8)
- 10170101
- Coordinates
- 42.86609, -97.39396
- USGS site number
- 06467500
- Records begin
- 1881-04-05 (145 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 20 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 | 11,932.3 | 16,806.5 | 23,551.6 | |
| February | 11,081.1 | 17,048.3 | 23,667.9 | |
| March | 10,194.2 | 18,877.4 | 27,032.3 | |
| April | 13,246.3 | 25,656.7 | 33,493.3 | |
| May | 20,000 | 29,125.8 | 36,274.2 | |
| June | 17,940 | 29,976.7 | 39,006.7 | |
| July | 21,751.6 | 32,254.8 | 42,296.8 | |
| August | 23,432.3 | 32,429 | 50,351.6 | |
| September | 23,250 | 32,526.7 | 51,423.3 | |
| October | 22,628.4 | 32,664.5 | 52,222.6 | |
| November | 8,981.7 | 31,670 | 52,273.3 | |
| December | 11,967.7 | 17,480.6 | 29,577.4 |
All values in cubic feet per second (cfs).