condition mean min max 4 h after light 23.4 23.4 23.4 8 h after light 50.55 50.4 50.7 12 h after light 26.1 4.7 47.5 4 h after dark 24.0 19.7 28.3 8 h after dark 46.8 5.5 88.1 12 h after dark 65.0 54.0 76.0