I’m willing to take the risk... The Washington gal isn’t going to be the one to say the risk of rain in OK is too high :~)
And I have sweaters.
LOL...I think we picked Oct. hoping the trees will be changing then.
Any time in the fall and spring when the heat is not bad is going to be a risk. Sept and Dec. could be just as good or bad as Oct. June, July and Aug, would be the only months that the risk of rain would be less, but then you risk the heat.
So pick your poison.