Autumn marks the transition from summer into winter, in September (Northern Hemisphere) or March (Southern Hemisphere) when the arrival of night becomes noticeably earlier. The days become noticibly cooler as we move away from summer and towards winter.
Many cultures have harvest celebrations, as they gather the year's final crops and prepare for the winter months.
Many people love observing the beauty of the trees, and leaves begin to change into vibrant warm colors.
