condition mean min max 0 h after light 615.3605 606.661 624.06 2 h after light 696.124 685.605 706.643 4 h after light 670.4235 663.071 677.776 8 h after light 663.445 657.95 668.94 12 h after light 718.1565 699.227 737.086 2 h after dark 650.884 599.844 701.924 4 h after dark 631.6415 626.001 637.282 8 h after dark 551.694 533.207 570.181 12 h after dark 616.08 597.061 635.099