Although there are about a hundred varieties of avocado, only a few are grown and consumed in the United States. The most commonly available variety is the Haas avocado, a dark-green, pebbly skinned avocado grown in California that is available year-round. Fuerte avocados are medium green and have a smoother skin. Grown in California, they are available in the fall and winter. Florida avocados are larger than those from California, have a smoother skin, and are lower in fat. Some jumbo avocados may be slightly lower in fat as well.