When Does Autumn Start Hot! Instant

It aligns with the Gregorian calendar, making record-keeping much simpler. If you are someone who likes to break out the Halloween decorations on September 1st, you have the meteorological community backing you up.

Astronomical autumn begins on the .

For most people, autumn begins on the date of the autumnal equinox. In the Northern Hemisphere, this typically falls on September 22 or 23. In the Southern Hemisphere, it occurs around March 20 or 21. when does autumn start