This map shows the historic probability of there being at least 1 inch of snow on the ground at weather stations across the United States on December 25 based on the latest (1991-2020) U.S. Climate Normals from NOAA National Centers for Environmental Information (NCEI).
Using those station data, experts interpolated values for all locations in the Lower 48. (Interpolating means estimating values where you don’t have direct observations, using existing observations and physical relationships, such as the way temperature changes with altitude.) Darkest gray shows places where the probability is less than 10%. (Sorry West Coast, Gulf Coast, Deep South!) White shows probabilities greater than 90 percent.
