condition mean min max 4 h after light 223.086 203.869 242.303 8 h after light 83.01515 68.3473 97.683 12 h after light 384.94 362.976 406.904 4 h after dark 1000.9043333333333 973.193 1021.74 8 h after dark 819.5176666666667 808.585 829.614 12 h after dark 467.558 457.559 477.035