condition mean min max 4 h after light 573.6541935 546.629363 600.679024 8 h after light 570.795437 566.847441 574.743433 12 h after light 602.895486 529.712761 676.078211 4 h after dark 558.7940615 549.901798 567.686325 8 h after dark 613.4506974999999 556.245444 670.655951 12 h after dark 653.252422 653.252422 653.252422