condition mean min max 4 h after light 95.9 95.9 95.9 8 h after light 147.3 85.9 208.7 12 h after light 153.5 116.2 190.8 4 h after dark 158.2 147.8 168.6 8 h after dark 246.2 204.6 287.8 12 h after dark 298.25 288.4 308.1