The climatological term of a “White-Christmas” is defined as having one inch of snow on the ground, or snow depth, on Christmas Day. Here are some records of past Christmas weather.
Duluth All-Time Records
Least snowiest Christmas (measured snow depth on Christmas Day)
0 inch…1979, 1939, 1923
1 inch…1999, 1997, 1984, 1967
Information provided by the National Weather Service.