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Average Surface Water Temperature - Coastwatch Great Lakes Node

Average Surface Water Temperature (GLSEA)

Previous 365 days ACSPO GLSEA Average Surface Water Temperature

View data

Average GLSEA Surface Water Temperature Graphs

Superior

Michigan

Huron

Ontario

Erie

St. Clair

Long term average surface water temperature compared to present year (CSV, 1995 – Present)

Superior (F)

Michigan (F)

Huron (F)

Ontario (F)

Erie (F)

St. Clair (F)

Superior (C)

Michigan (C)

Huron (C)

Ontario (C)

Erie (C)

St. Clair (C)

Historic Graphs

Long term average surface water temperature compared to 2022 (Graphs, 1995-2021)

Superior

Michigan

Huron

Ontario

Erie

St. Clair

Long term average surface water temperature compared to 2023 (Graphs, 1995-2022)

Superior

Michigan

Huron

Ontario

Erie

St. Clair

Long term average surface water temperature compared to 2024 (Graphs, 1995-2023)

Superior

Michigan

Huron

Ontario

Erie

St. Clair

Historic Data Files

Long term average surface water temperature compared to 2020 (CSV, 1995-2019)

Superior (F)

Michigan (F)

Huron (F)

Ontario (F)

Erie (F)

St. Clair (F)

Superior (C)

Michigan (C)

Huron (C)

Ontario (C)

Erie (C)

St. Clair (C)

Long term average surface water temperature compared to 2021 (CSV, 1995-2020)

Superior (F)

Michigan (F)

Huron (F)

Ontario (F)

Erie (F)

St. Clair (F)

Superior (C)

Michigan (C)

Huron (C)

Ontario (C)

Erie (C)

St. Clair (C)

Long term average surface water temperature compared to 2022 (CSV, 1995-2021)

Superior (F)

Michigan (F)

Huron (F)

Ontario (F)

Erie (F)

St. Clair (F)

Superior (C)

Michigan (C)

Huron (C)

Ontario (C)

Erie (C)

St. Clair (C)

Long term average surface water temperature compared to 2023 (CSV, 1995-2022)

Superior (F)

Michigan (F)

Huron (F)

Ontario (F)

Erie (F)

St. Clair (F)

Superior (C)

Michigan (C)

Huron (C)

Ontario (C)

Erie (C)

St. Clair (C)

Long term average surface water temperature compared to 2024 (CSV, 1995-2023)

Superior (F)

Michigan (F)

Huron (F)

Ontario (F)

Erie (F)

St. Clair (F)

Superior (C)

Michigan (C)

Huron (C)

Ontario (C)

Erie (C)

St. Clair (C)

Average GLSEA Surface Water Temperature Data (by year)

1995

1996

1997

1998

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

2016

2017

2018

2019

2020

2021

2022

2023

Statistics Pages