Welcome

This site provides public access to real-time hydrometric data collected at over 1800 locations and access to historical data collected at over 7600 stations (active and discontinued) in Canada. These data are collected under a national program jointly administered under federal-provincial and federal-territorial cost-sharing agreements. It is through partnerships that the Water Survey of Canada program has built a standardized and credible environmental information base for Canada.

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Notice

The twenty third release of the HYDAT.mdb and the second release of Hydat.sqlite3 dated on January 15, 2016 are now available. Both HYDAT.mdb and Hydat.sqlite3 can be used as standalone products.