condition mean min max 4 h after light 47.1 47.1 47.1 8 h after light 24.9 23.3 26.5 12 h after light 46.85 6.2 87.5 4 h after dark 23.7 16.0 31.4 8 h after dark 12.25 12.1 12.4 12 h after dark 15.75 5.5 26.0