condition mean min max 4 h after light 27.5 27.5 27.5 8 h after light 15.55 7.5 23.6 12 h after light 13.6 7.7 19.5 4 h after dark 13.9 11.9 15.9 8 h after dark 31.049999999999997 11.2 50.9 12 h after dark 20.950000000000003 10.8 31.1