I've been catching up here, and I do hope your daughter's power is back on! You asked how cold it could get in a house without power .... well, on January 5th our power went out .. it was out until January 8th, and the coldest temperature outside was -15 with a windchill of -45 because of the high winds. We bundled up in one room with a space heater hooked up to a generator. At one point, when we went out into the hallway to look at the thermostat, it read 38*! Have to say, it got very cold indoors, we could even see our breath! It was almost colder in the house than in our refrigerator, so we didn't worry about the food at all. Didn't do much eating, though ... lots of playing cards and reading, and just trying to stay warm! I've heard there are lots of people without power in that storm. I do hope your daughter get's hers back on soon!