In the UK we use the term autumn instead of fall. Our meteorological office has the following:
"The seasons are defined as spring (March, April, May), summer (June, July, August), autumn (September, October, November) and winter (December, January, February)".

But really, what is the point of this post? The world has been and is still in various countries under the yoke of the awful Covid virus, causing unprecedented disruption to basically everything we do.
To make matters even worse, one of the core SE team has been battling a terrible illness, having to ask his doctor if he could be at the recent presentation.

And here all we can manage is a moan about flat earth date descriptions. 'it's not fall here'.....'oh it is here'........'oh yes it is '....'oh no it isn't'......
Just please stop this rancid ridiculousness. SE must look at these posts and wonder what kind of horrible people they are trying to please.
Just stop it.