Why don’t the meteorological seasons line up with the solstices/equinoxes?

Question

For example: the autumnal equinox was yesterday, but meteorological autumn starts September 1st. Why the disconnect?

In: Planetary Science

Answer 1

Some places define autumn differently than others. I thought it weird when i heard places start autumn on sept 1. Where im from , the US, fall does start with the equinox. I believe places that do start on the first have weather changes a bit earlier, hence the earlier autumnal starting point.