Lake Auburn. This picture links to the article.
Here on Clary Lake we haven’t been keeping ice in and ice out records for long enough to see a shortening of the iced-in period. Our records go back to 2001 and in that time, there’s no obvious trend but over significantly longer periods (many decades and longer) it’s clear that Maine winters are gradually becoming milder and anyone who’s lived around here for more than a few years can testify to that fact. This article in the Kennebec Journal discusses some of the impacts of shorter iced-in periods on Maine Lakes.