High Quality Content by WIKIPEDIA articles! Snow becomes suitable for packing when in approaches its melting point and becomes moist and compact. This allows for the construction of a large snowball by simply rolling it, until it grows the desired size. If the snow ball reaches the bottom of the grass it may tear up some grass, gravel, dirt etc. Making a snowman out of powdered snow is difficult since it will not stick to itself, and if the temperature of packing snow drops, it will form an unusable denser form of powdered snow called crust. Thus the best time to build a snowman is usually in the next warmest afternoon directly following a snowfall with a sufficient amount of snow. In Europe and North America, snowmen are built with three spheres depicting the head, torso, and lower body.