condition mean min max 4 h after light 39.2 39.2 39.2 8 h after light 4.05 2.1 6.0 12 h after light 18.25 1.9 34.6 4 h after dark 29.1 19.6 38.6 8 h after dark 14.25 5.0 23.5 12 h after dark 35.7 22.3 49.1