Yes, milk can be frozen for extended periods of time without significant deterioration. However, freezing milk will cause it to expand and change texture, so it is best used for cooking or baking rather than drinking. When thawed, milk should be used within a few days.
Milk can last in the freezer for up to three months, but it's best to use it within two. Frozen milk should be thawed in the refrigerator and shaken well before using. Once thawed, use within four days.
whole milk: 6 months
2% reduced-fat milk: 8 months
nonfat dry milk powder: 18–24 months