As September fades, a new season begins. Leaves and temperatures tumble. And, as autumn falls, new colors and smells gradually replace the heat and intensity that was summer. Autumn means the beginning of something new and crisp and familiar.As September fades, a new season begins. Leaves and temperatures tumble. And, as autumn falls, new colors and smells gradually replace the heat and intensity that was summer. Autumn means the beginning of something new and crisp and familiar.