This is my sunroof from inside the car after the last snow storm on January 10. The ice was about 1/4" thick.
I know my brother laughs his arse off at us goofy Southerners - he says "Fie!" to winter and grills brats with a beer frozen to his hand. (keeps it cold)
Heck, the kids stand outside to catch the bus until it's -10. Not sure why -10 is the marker. Like -9 is okay, but -10, oh hell no - that's too cold?