condition mean min max 4 h after light 135.1 135.1 135.1 8 h after light 108.15 106.9 109.4 12 h after light 205.25 131.1 279.4 4 h after dark 273.4 266.3 280.5 8 h after dark 284.45 281.9 287.0 12 h after dark 269.2 262.0 276.4