I'm 13 and my dad won't talk to me??

Of course we don't know the other side of it but from what you're saying, no, it's not exactly a normal thing to do.

Is your mother in the picture? Can you talk to her about this? If he's doing this now, he may have done it in the past to her or people she knows, and she may be able to give you some insights.

Usually when someone says they don't want to talk to a person, that person has said or done something to hurt or offend, so they have to cut them off for their own reasons.

You say you don't think you have done "much wrong."

Maybe dad thinks it's a lot wrong. Can you think what it might be? Does Sister have any idea? Is your mom around?

This should be dealt with asap. Not good to have that kind of silence in the house.