condition mean min max 4 h after light 4.50683 4.4663699999999995 4.56415 8 h after light 4.4869 4.45861 4.52754 12 h after light 4.4528533333333336 4.28907 4.62215 4 h after dark 4.4673066666666665 4.42047 4.503819999999999 8 h after dark 4.581066666666667 4.47467 4.70745 12 h after dark 4.50894 4.42061 4.66667