condition mean min max 4 h after light 354.9 354.9 354.9 8 h after light 396.1 357.9 434.3 12 h after light 172.5 6.2 338.8 4 h after dark 380.09999999999997 2.4 757.8 8 h after dark 518.2 321.3 715.1 12 h after dark 270.05 77.4 462.7