condition mean min max 4 h after light 524.8883475 351.079938 698.696757 8 h after light 789.9490145 626.872595 953.025434 12 h after light 760.482445 711.924364 809.040526 4 h after dark 702.977168 669.952691 736.001645 8 h after dark 435.8636115 365.879782 505.847441 12 h after dark 363.232057 363.232057 363.232057