Houses with crawl spaces are notorious for pipes freezing in this cold weather, actually had it happen to a rental house I owned, ended up insulating more and wrapped the pipes with a heating cord.
Lost power from 11 to 5, had the wood stove to keep the house comfortable. Have a genny couldn't get the damn thing to start. I'll be better prepared next time I lose power.
Back in the October snow that caused power outages for up to a week and more, they said houses were down in the 40s, that was with night temps in the 20s so I imagine they'd go lower than that with these temps.
Problem is we're not used to it, some years this cold wouldn't bother me, today it's chilling me to the bone. Gonna stay inside tonight by the wood stove.