condition mean min max 4 h after light 29.6 29.6 29.6 8 h after light 14.8 7.3 22.3 12 h after light 22.1 14.7 29.5 4 h after dark 49.25 42.7 55.8 8 h after dark 15.25 10.3 20.2 12 h after dark 27.35 27.1 27.6