Mother-Hen-Michele
Crowing
I don't know much about the difference in hot and humid vs cold and damp, except the hot seems to draw the moisture out of things and the cold seems to lock the water inside of things. Your soil is dry even though it is humid, my soil gets mucky from the moisture. Your humidity is water leaving the ground, my soil is not releasing the water (it is hoarding it). The dirt here freezes solid due to the water in it.I would not call my air dry -- we call this area "The Steamy Southeast" because it's not uncommon to have 95-95 days in the summer. That being, 95F with 95% humidity.
But I have exceptional airflow in all my coops and the sandy soil that's lousy for gardening (chicken compost to the rescue), is excellent for drainage in the coop so I don't get mud.