Deciding a Full Marathon

I have been thinking about doing a marathon at the end of April and run for a charity to! It will be my first marathon and I have been questioning myself if I can accomplish it! I was woundering if training in the winter will I be able to get my miles in, while considering it will be my first time running in the snow! But it is a plus that I have 3 half marathons under my belt! 

Well I have offically decided to train for a full marathon! I just sent the email out it is official! Wish me luck in April!