It is 4:40 a.m. here in Florida....the temp is showing approx. 33 degrees F....but keep in mind the majority of homes are not insulated to the regulations of the Northern states.
Even though we have heaters it is almost futile to crank them up much just enough so water pipes do not freeze. I do not know what insulation rating the public buildings have to follow. Hopefully, these temps. will not be a regular event here.
All those extra quilts & layers of clothing are handy. Stay warm & safe.