Coffee Break: Join us on Wednesday, April 5th at 10am PT to chat with Ben Gaines, Director of Product Management for Adobe Analytics. Ben will be online to answer your Analytics and Adobe Summit questions.
Is this a feature you are looking or proposing? or is this a question?
If a question: you can use a cookie to store the visit number (Which should expire after a month) and read the same cookie in all the visits. If the visit number is >=2, you can have a event-triggered with event serialization helps you get the monthly returning visitors.