Alaskan dogs will change their hair for about 3 to 6 months. Puppy Alaskan dogs will start to change their hair when they are three months old and will continue until about 8 months old; adult Alaskans will change their hair between March and May every spring. Molting begins from September to November in autumn and lasts for about three months each time. Alaska has a lot of hair, so it will shed a lot of hair during the moulting period. At this time, it is best to comb the dog's hair more every day to avoid tangles.