Actually, I have lived where it got that cold, so yes, I DO know cold. However, I suspect you too would think it was cold if you lived where it rarely got cold and didn’t have a house built for cold weather or cold weather clothing handy. The bad thing about the weather this year is we had a hot summer that went longer than usual and then suddenly it was in the 40s. We generally have a nice mild winter.
But, I will agree with you, 3 degrees is COLD.
I’ve been in a marble hotel room in Mexico when it’s 45 degrees out and there is no heat. So, yes I understand relativity.