We have times here where it is 10-20 degrees for a few days and I have never had an issue. I know this is not a NH winter but close at least for a few days to a week. Our large 1 which is 16' in diameter has had over 5" of ice on the top of it and again no issues. I'm sorry I can't give you a definite but it's definitely worth a try.Will Intex pool ponds hold up under harsh winter conditions?
Where we live, the winter weather conditions are brutal.