condition mean min max 4 h after light 197.3 197.3 197.3 8 h after light 120.1 86.0 154.2 12 h after light 114.0 113.5 114.5 4 h after dark 96.6 77.6 115.6 8 h after dark 91.6 33.6 149.6 12 h after dark 143.39999999999998 132.1 154.7