Though Winter, Spring, Summer, and Autumn are assigned particular start and end dates on the calendar, most of us have developed specific events that denote the arrival and passing of the seasons. It might be seeing the first robin or noticing the maple tree that is always the first to change its colors as Fall approaches. It's hardly scientific, but those are the things that make it official for us.
For me, Summer arrives when I first spot someone in a hammock. This harbinger of warm weather was found along the Canal Walk in Indianapolis and is burrowed so deeply in her hammock that only her book was visible. I hope she can get out when the home made ice cream is ready, which is the other sign that Summer is here.