condition mean min max 4 h after light 22.1 22.1 22.1 8 h after light 19.35 12.8 25.9 12 h after light 14.45 3.5 25.4 4 h after dark 14.5 10.2 18.8 8 h after dark 28.8 14.1 43.5 12 h after dark 40.5 26.4 54.6