Dill comes to Maycomb for the summers to live with his aunt, Miss Rachel Haverford. Dill is a summer time character through most of the novel. He arrives at the start of summer and leaves just before school starts. His arrival and departure signal the beginning and end of summer. In other words, Scout can finally have some fun because of the arrival of Dill. His presence in Maycomb can be representative of June, July, and August. The rest of the months would be his absence. Painting a larger picture, the return of Dill signifies to the reader that an entire year has passed by. For sure the reader is brought through a full year's time by the time Dill comes for the second summer. Later in the book though Dill runs away from his home and arrives back in Maycomb before the next summer.