condition mean min max 4 h after light 627.3981 616.164752 638.631448 8 h after light 722.2868415 717.876957 726.696726 12 h after light 704.7151145 606.396005 803.034224 4 h after dark 707.158633 605.469825 808.847441 8 h after dark 623.5588115 599.616672 647.500951 12 h after dark 461.961414 461.961414 461.961414