Columbia Basin
Station: International Boundary


GRDC Station Information
STN Derived Subbasin Information
Station Name (GRDC ID): International Boundary (4215220) Basin Name: Columbia
River Name: Pend Oreille Next Downstream Station:The Dalles, Oreg. (4115200)
GRDC Country Code: CN Distance to Next Downstream Station: 780 km
Start Year [Month]: 1913 [2] Upstream Station(s): None
End Year [Month]: 1984 [12]
Mean Discharge: 771 m3/s
Minimum Discharge: 130 m3/s
Maximum Discharge: 4260 m3/s Length of Upstream Mainstem: 646 km
Mean Interstation Discharge: 771 m3/s Distance to Basin Outlet: 1079 km
GRDC Catchment Area: 65300 km2 STN Catchment Area: 64643 km2
GRDC Interstation Area: 65300 km2 STN Interstation Area: 64643 km2
GRDC Station Runoff: 373 mm/yr STN Station Runoff: 376 mm/yr
GRDC Interstation Runoff: 373 mm/yr STN Interstation Runoff: 376 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 453.5 131.0 1220.0
Feb 480.1 130.0 958.0
Mar 536.1 200.0 1120.0
Apr 796.2 186.0 1740.0
May 1603.0 429.0 2570.0
Jun 2063.0 428.0 4260.0
Jul 1125.8 205.0 3230.0
Aug 453.1 233.0 1280.0
Sep 363.0 188.0 667.0
Oct 442.8 178.0 892.0
Nov 488.2 178.0 952.0
Dec 453.2 155.0 923.0