Cooking Temperature and Time for Pre-Cooked, Bone-In Ham If the ham is a half ham weighing five to seven pounds, it should heat at 325°F for 22-25 minutes per pound. If it is a whole ham weighing ...

You can bypass the 1 ½-hour soaking time, but the heating time will increase to 18 to 20 minutes per pound for a cold ham. If you skip the soaking step, the ham will be a bit less juicy.