condition mean min max 4 h after light 261.5 261.5 261.5 8 h after light 298.05 231.5 364.6 12 h after light 245.55 121.8 369.3 4 h after dark 126.6 95.3 157.9 8 h after dark 140.25 125.0 155.5 12 h after dark 229.8 204.6 255.0