Modify "Cloud Settings" "Coverage" to be a multiplier of the respective daily weather's cloud density when daily weather is active, otherwise use current behavior.

that isnt very viable. increasing a multiplier would make overcast days so overcast it looks a little broken, while the low coverage days look alright.
it goes the same way for a reduced multiplier. low coverage would almost cease to exist, and high coverage days would become medium

i know its tedious but you do have full control over the coverage of each of the 10 weather profiles.