boating question

[jr76]

I am still fairly new to the boat ownership thing and would love some good advice. I have a boat i keep at a marina in point pleasant. My question is what is the earliest i can safely put my boat back in the water? Do i have to wait until there is no more chance of freezing temps? Is my only concern ice forming around the boat?? I am sure the major concern is the motor freezing, but is there any tricks so i can go in a little earlier???? Thanks