condition mean min max 4 h after light 470.5 470.5 470.5 8 h after light 399.15 380.8 417.5 12 h after light 362.1 357.3 366.9 4 h after dark 344.4 296.8 392.0 8 h after dark 320.54999999999995 301.9 339.2 12 h after dark 303.75 282.3 325.2