The lake was declared ice-free and navigable by boat on Monday, April 5. It's about two weeks earlier than the average ice-out date over the past hundred-plus years.
That's the shift toward earlier ice-outs that a state report confirmed for the first time last year.
Ice-out on New Hampshire's Lake Winnipesaukee officially declared April 5 2021, consistent with the trend toward warming winters. pic.twitter.com/oAPUAc3kRQ
— Larry Hamilton (@ichiloe) April 7, 2021
Much of the change has happened since the 1980s, in the same period as planet-warming carbon emissions have skyrocketed.
Lake Winnipesaukee's earliest recorded ice-out was March 18, 2016. That was also the hottest year ever recorded on earth.