Jump to content

Lake Ontario water temps - Deep water off Rochester


Recommended Posts

Looking through our temp data for todays date (12/27) for the past 11 years, we are currently sitting at the second highest intake temp.  We will see how the winter pans out but the YOY alewife need this pattern to continue!  Here are the temps for the past 11 years on this date:


2023 - 44 degrees

2022 - 35 degrees

2021 - 42 degrees

2020 - 40 degrees

2019 - 39 degrees

2018 - 39 degrees

2017 - 36 degrees

2016 - 40 degrees

2015 - 45 degrees

2014 - 40 degrees

2013 - 37 degrees

  • Like 2
Link to comment
Share on other sites

If it stays this mild there will be a lot of fat salmon in spring, but neither Lake Ontario nor Lake Eerie will  freeze over. that will mean that we will get dumped on on with a lot of lake effect snow.

Link to comment
Share on other sites

I know a major concern is the effects of long term super cold weather on the water temps and YOY but I also wonder whether it would be just as bad to have the temps this warm and then have an extreme rapid cold snap reducing the water temp.

Link to comment
Share on other sites

Hard to say what the overall effect on ecosystem would be but for alewives and kings, moderate temps over winter is a benefit. For every 4 degrees of elevation in water temp, the productivity of a system goes up by a level of 16x. The Tule strain of salmon off Washington ( not to be confused with the tools in Washington DC), evolved in ocean temps that does not vary much from the 47-55 degree range. The interesting thing to watch is how this large class of three old kings being active and chowing down all offseason on the nicely rebounded alewife year classes and perhaps buck the trend of smaller body sizes. IMO this is a good year to change out your mono and check your drags. 

Link to comment
Share on other sites

Hoping for a mild spring, but according to the glerl.noaa site, bottom temps & transects are not uniform.  There's a lot of awful cold water out there beyond that warm patch along the south shore.

Link to comment
Share on other sites

:yes: “ IMO this is a good year to change out your mono and check your drags” 


King age, temps,  and alewife #s definitely look good but don’t forget the benefits of (hopefully) declining lamprey numbers after the COVID bump. It’s pretty simple, but rarely discussed, that it’s harder for Kings to grow to 30lbs when there are more 1lb parasites sucking out all their blood. 

  • Like 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
  • Create New...