People used to ice skate on the lake near my house during Winters up until the 70s. Now they're swimming there throughout the winter. We had a ski lift fifteen minutes from my house 20 years ago. Now in a good winter, we have a week where there's enough snow for kids to go sledding.
Very similar pattern here (UK): circa 1900, ice skating on the local pond every winter. The ice was thick enough to walk on the pond twice in the 1980s. For the last decade, the pond hasn't completely frozen over once. We got about two days of 30% coverage this Jan.
