condition mean min max 4 h after light 25.3 25.3 25.3 8 h after light 21.15 5.9 36.4 12 h after light 17.2 13.5 20.9 4 h after dark 3.55 3.5 3.6 8 h after dark 22.5 4.3 40.7 12 h after dark 21.55 3.2 39.9