I first saw the title of your post, and I apologize in advance....but it gave me a "huge" belly laugh!
Weather predictions!?!? For a season!?!
I don't/can't trust even a daily/weekly prediction....
My best advice would be to look at the past several seasons, and extend those out by a month, at least.
Both on the front, and end...
For the heck of it, I left an eggplant in an earth box growing over the summer... here we are .... Halloween, and the thing has been growing and producing 😳
At this point, I think it's anybody's guess!
Our climate is changing so drastically, and so quickly, that predictions, in my opinion, are fool hardy...