condition mean min max 4 h after light 3.3 3.3 3.3 8 h after light 30.25 14.3 46.2 12 h after light 24.4 20.5 28.3 4 h after dark 35.75 20.2 51.3 8 h after dark 33.85 25.8 41.9 12 h after dark 40.85 22.0 59.7