condition mean min max 4 h after light 395.3 395.3 395.3 8 h after light 321.35 313.4 329.3 12 h after light 331.55 296.6 366.5 4 h after dark 498.20000000000005 317.3 679.1 8 h after dark 715.0 648.4 781.6 12 h after dark 639.85 570.0 709.7