It wasn't too bad today, as it wasn't that windy - but on those days where it is cold and windy, it is a nightmare. We are dogsitting a little dachshund for the night, and he can't go out for more than about 10 minutes at a time, as he has no booties :D
Once it gets past about -15 to -20, it all feels the same. I suspect the difference is how fast you freeze to death.
Happy New Year!