condition mean min max 4 h after light 1050.7179595 1002.924364 1098.511555 8 h after light 937.7925534999999 863.11848 1012.466627 12 h after light 697.820422 635.001288 760.639556 4 h after dark 487.193337 458.708309 515.678365 8 h after dark 466.94588999999996 446.115281 487.776499 12 h after dark 920.539749 920.539749 920.539749