condition mean min max 4 h after light 51.5 51.5 51.5 8 h after light 130.85 127.5 134.2 12 h after light 228.85 226.5 231.2 4 h after dark 240.1 228.5 251.7 8 h after dark 167.85 106.7 229.0 12 h after dark 98.85 77.8 119.9