International Lake Ontario - St. Lawrence River Board

Water Levels

 

Click on the images below to access the monthly or daily water level products.


Monthly Mean Water Levels Compared to Long-Term Average

 Great Lakes Water Levels   Great Lakes Water Levels

 

  Daily Mean Water Levels

Meters

Feet

Water Levels Report for Current Month

Water Levels Report for Current Month

Water Levels Report for Last Month

Water Levels Report for Last Month

Water Levels Report for Two Months Ago

Water Levels Report for Two Months Ago

Water Levels Report for Three Months Ago

Water Levels Report for Three Months Ago