condition mean min max 4 h after light 187.8 187.8 187.8 8 h after light 207.35 169.7 245.0 12 h after light 168.05 144.6 191.5 4 h after dark 185.6 179.7 191.5 8 h after dark 276.65 271.7 281.6 12 h after dark 308.95000000000005 304.8 313.1