condition mean min max 4 h after light 29.5 29.5 29.5 8 h after light 3.2 1.9 4.5 12 h after light 36.25 30.3 42.2 4 h after dark 12.6 3.0 22.2 8 h after dark 25.55 19.5 31.6 12 h after dark 10.5 3.4 17.6