Latest date barefooting?

Got to be close. Just back from a 1+ mile trek around the neighborhood, barefoot, thankfully. It’s Dec. 29, 40F, the snow melted, and I’m in Wisconsin, not usually this warm in Dec. Not sure I’ve gone so late before. It’s been freakishly warm the last couple of days, but today —50 for the high — I’ve been barefoot to the coffee shop and ALDI, too. Stares galore, but only one comment, wondering how I could stand it.