condition mean min max 4 h after light 4.4202449999999995 3.97546 4.86503 8 h after light 4.96594 4.93398 4.9979 12 h after light 6.00014 5.67602 6.32426 4 h after dark 6.978765 6.80726 7.15027 8 h after dark 5.8745899999999995 5.38211 6.36707 12 h after dark 5.970695 5.58997 6.35142