A set of beautiful pictures of heavy snow on mobile phone wallpapers are shared with everyone. Wallpaper size: 1080x1920. Heavy snow is the 21st of the twenty-four solar terms. The time is December 7 or 8 of each year in the Gregorian calendar, which is also the day of the Ganzhi Calendar.The end of the month and the beginning of the sub-month; when the apparent sun reaches 255 degrees of ecliptic longitude.