This approach suggests that "autumn" is a fluid state of being. Depending on your latitude, autumn might arrive in late August in the far north, but not until late October in the southern states.
For nature, autumn doesn't start on a specific date. It starts when the environment says so. when does autumn start
A noticeable drop in humidity and the arrival of "killing frosts" in northern regions. This approach suggests that "autumn" is a fluid
It is officially "sweater weather" season. But if you are the type of person who takes out the calendar to mark the occasion, you might notice something confusing. Depending on where you live or who you ask, the start date of autumn changes. the start date of autumn changes.