It's the GFS, but today's 12Z run does have temperatures moderating toward the end of the month after the Christmas chill + whatever fun comes prior to it.
Some regular posters in this sub are fans of prolonged deep freeze...I am not one of them.
* Actually, looks like there is some sort of western trough/storm system involved with that...again GFS fantasy range.
But from where I sit, this has been a far from boring weatherwise start to winter, although the constant cloud cover is starting to get old.