https://www.washingtonpost.com/graph...stralia-fires/
We have already had 3 freezes, and we will have a 3rd thaw this weekend, with temperatures 60F+.
Our building code requires footings to be a minimum of 4' below grade. With a thaw every week or two, only the top few inches will freeze.
We used to sell ice around the world and harvest ice several times a winter, and play ice hockey and ice fish - none of that is going to happen, now.