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Chilko River in British Columbia

River48.2 mi
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Around Chilko River

TATLAYOKO LAKE NORTHEAST /Telhiqox B…10.3 miChaunigan Lake11.8 mi10 mi

Source: Recreation Sites and Trails BC, Open Government Licence (British Columbia)

About this river

Chilko River is a 48.2 mile river. Streamflow is measured at the Water Survey of Canada gauge Chilko River at Outlet of Chilko Lake (site 08MA002). Reach geometry comes from Natural Resources Canada's National Hydro Network.

Typical flow by month

1928 to 2025

Chilko River typically runs highest in July, at a median 4,026 cfs, and lowest in April, at 298 cfs. The highest flow on record for any single day is 7,169 cfs, in 1969.

Show the numbers
Typical flow by month at Chilko River at Outlet of Chilko Lake, in cfs
MonthTypical (cfs)Usual range (cfs)
January464381 to 559
February342285 to 429
March302246 to 364
April298234 to 369
May664459 to 847
June2,5602,167 to 3,233
July4,0263,410 to 4,591
August3,6903,388 to 4,141
September2,3682,124 to 2,740
October1,4061,202 to 1,637
November923789 to 1,191
December653537 to 814

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 92 years of record. Statistics published by the US Geological Survey for Chilko River at Outlet of Chilko Lake (site 08MA002). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

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