My experience.
oak logs, mostly white oak, but some red also. 8-12’ long, 18-30” diameter. Northern MO. Cut fall of 2015 or 2016. Stored in a couple small stacks, all had sun exposure. Sawn into 1-1/4”*8” boards summer of 2018. Stickered and stacked along the wall in a uninsulated machine shed until summer of 2020. Boards were still 15-20% when we unstacked and attempted to use according to the high $ wood moisture tester the carpenters had.
Had very limited warp in these, and limited cracking even without ends painted, but was surprised at how wet they remained. I’d be doubtful of them drying down that much, that quickly based on what I saw.