cleung
Contributor
Once again this year, I hope to try out some scuba diving at the St Lawrence river dive sites up here along the US/Canada border. August and September are suppose to be the warmest months for the water temperature. Here's a website that monitors the local water temperature;
http://www.ndbc.noaa.gov/station_page.php?station=aban6
http://www.ndbc.noaa.gov/station_page.php?station=aban6