Mississippi Basin
Station: Yankton, S.D.


GRDC Station Information
STN Derived Subbasin Information
Station Name (GRDC ID): Yankton, S.D. (4121800) Basin Name: Mississippi
River Name: Missouri Next Downstream Station:Nebraska City, Nebr. (4122650)
GRDC Country Code: US Distance to Next Downstream Station: 331 km
Start Year [Month]: 1930 [10] Upstream Station(s): Culbertson, Mont. (4120900)
Sidney, Mont. (4120950)
End Year [Month]: 1984 [12]
Mean Discharge: 749 m3/s
Minimum Discharge: 106 m3/s
Maximum Discharge: 4757 m3/s Length of Upstream Mainstem: 2077 km
Mean Interstation Discharge: 9 m3/s Distance to Basin Outlet: 2149 km
GRDC Catchment Area: 723900 km2 STN Catchment Area: 716161 km2
GRDC Interstation Area: 307790 km2 STN Interstation Area: 322792 km2
GRDC Station Runoff: 33 mm/yr STN Station Runoff: 33 mm/yr
GRDC Interstation Runoff: 1 mm/yr STN Interstation Runoff: 1 mm/yr
Station Field DescriptionsBasin Field Descriptions


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Site Descriptor Information Station Time Series Data


Hydrograph Station Data
Extreme Values Over Period Of Record
Month MeanQ
m3/s
MinQ
m3/s
MaxQ
m3/s
Jan 348.4 106.0 676.0
Feb 372.8 154.0 681.0
Mar 600.0 228.0 1480.0
Apr 1004.6 310.0 4757.0
May 847.6 412.0 2053.0
Jun 1132.9 484.0 2498.0
Jul 1058.8 535.0 2094.0
Aug 877.2 255.0 1780.0
Sep 845.6 193.0 1770.0
Oct 825.3 242.0 1770.0
Nov 694.1 166.0 1760.0
Dec 379.6 147.0 829.0