I remember that because it started here with 7" of unexpected snow Dec 24/25. The forecast the morning of Dec 24 was flurries only. But a huge nw shift gave us a storm.
3 of the past 6 Christmases have had perfectly timed snows here.
4.5" synoptic on Dec 24, 2017, falling late afternoon through evening. Then another inch in LES christmas day.
3.6" on Dec 24/25, 2020, from 11pm christmas eve thru mid afternoon christmas day
2.4" last christmas eve and day atop a few inches of snow from the 23rd.