condition mean min max 4 h after light 46.7 46.7 46.7 8 h after light 51.15 43.8 58.5 12 h after light 20.25 5.6 34.9 4 h after dark 24.35 6.0 42.7 8 h after dark 27.15 1.5 52.8 12 h after dark 23.0 10.2 35.8