condition mean min max 4 h after light 33.9 33.9 33.9 8 h after light 4.7 3.1 6.3 12 h after light 14.45 4.5 24.4 4 h after dark 9.9 9.0 10.8 8 h after dark 35.4 27.7 43.1 12 h after dark 9.9 2.0 17.8