Mississippi Basin
Station: Sidney, Mont.


GRDC Station Information
STN Derived Subbasin Information
Station Name (GRDC ID): Sidney, Mont. (4120950) Basin Name: Mississippi
River Name: Yellowstone Next Downstream Station:Yankton, S.D. (4121800)
GRDC Country Code: US Distance to Next Downstream Station: 982 km
Start Year [Month]: 1965 [1] Upstream Station(s): None
End Year [Month]: 1984 [12]
Mean Discharge: 391 m3/s
Minimum Discharge: 104 m3/s
Maximum Discharge: 1601 m3/s Length of Upstream Mainstem: 865 km
Mean Interstation Discharge: 391 m3/s Distance to Basin Outlet: 3130 km
GRDC Catchment Area: 178977 km2 STN Catchment Area: 173162 km2
GRDC Interstation Area: 178977 km2 STN Interstation Area: 173162 km2
GRDC Station Runoff: 69 mm/yr STN Station Runoff: 71 mm/yr
GRDC Interstation Runoff: 69 mm/yr STN Interstation Runoff: 71 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 201.6 142.0 270.0
Feb 247.6 169.0 497.0
Mar 366.8 165.0 727.0
Apr 300.2 120.0 576.0
May 529.1 295.0 969.0
Jun 1071.3 479.0 1601.0
Jul 737.2 150.0 1408.0
Aug 269.0 104.0 460.0
Sep 236.8 104.0 354.0
Oct 273.0 164.0 431.0
Nov 246.7 111.0 324.0
Dec 206.9 129.0 272.0