If you've not read this article yet, I highly recommend it
https://www.backyardchickens.com/a/how-much-room-do-chickens-need
The rules are all well and fine as a guideline, but you always always have to look at what your birds are telling you. Not all us humans follow "the Rules", so not all birds are going to also
I'm in the PNW and agree our weather here has been weird. I am moving 3 week old chicks out to my outdoor grow out pen, where I run a heat lamp at night (and sometimes during these weird cool rainy days, depending) and the chicks do well. So do my broody raised chicks, who are all over the large run most of the day.
Put things in the coop to distract them, too. Doesn't have to be much. A clump of weeds will give them something to "talk" about and move their attention from each other. Branches, sticks, bricks, an extra feeder, a bucket on it's side, anything can to the trick here.