Echo Lake Ice-on / Ice-off Data (in detail)
Since 2009, Ice-ON/Ice-OFF data for Echo Lake (45.17804 -79.06398) has been recorded and uploaded to IceWatch. IceWatch is a Canadian citizen science program under the larger NatureWatch program that tracks winter ice formation and breakup on lakes and rivers to help scientists study climate change. Volunteers record the dates when ice first forms and when it completely disappears, contributing valuable long-term data from locations across the country.
For decades, scientists treated winter as a quiet period for lakes, but research reveals that lakes remain biologically active beneath the ice. Algae continue to grow, aquatic organisms survive, and microbes process nutrients and carbon. These winter processes can influence water quality and the size and composition of summer algal blooms. Climate change is bringing shorter winters, later ice formation and earlier ice melt, disrupting the natural processes that help regulate lake ecosystems. Changing ice conditions can also affect oxygen levels, shoreline erosion, wildlife habitats and human safety.
An interesting article entitled What We Missed Beneath the Ice (Water Canada, August 13, 2026) shows that winter is an essential part of a lake’s ecological cycle, not a dormant season. Year-round monitoring and research are needed to understand how changing winters affect freshwater ecosystems and to guide effective lake stewardship.
For decades, scientists treated winter as a quiet period for lakes, but research reveals that lakes remain biologically active beneath the ice. Algae continue to grow, aquatic organisms survive, and microbes process nutrients and carbon. These winter processes can influence water quality and the size and composition of summer algal blooms. Climate change is bringing shorter winters, later ice formation and earlier ice melt, disrupting the natural processes that help regulate lake ecosystems. Changing ice conditions can also affect oxygen levels, shoreline erosion, wildlife habitats and human safety.
YEAR
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Spring Breakup (Ice completely off)
April 17
April 1
April 26
March 24
April 23
April 28
April 22
April 19
April 15
May 4
May 2
April 16
April 8
April 15
April 16
April 3
April 21
April 1
April 26
March 24
April 23
April 28
April 22
April 19
April 15
May 4
May 2
April 16
April 8
April 15
April 16
April 3
April 21
April 22
Fall Freeze-up (Ice over)
December 16
December 8
December 21
December 20
November 28
November 28
January 4
December 11
December 10
November 20
December 2
December 16
December 28
December 13
January 5
December 8
December 16
December 8
December 21
December 20
November 28
November 28
January 4
December 11
December 10
November 20
December 2
December 16
December 28
December 13
January 5
December 8
December 5