condition mean min max 4 h after light 10.557895 8.65609 12.4597 8 h after light 10.540700000000001 10.1922 10.8892 12 h after light 10.907399999999999 10.3316 11.4832 4 h after dark 17.727766666666668 17.1572 18.6379 8 h after dark 17.523566666666667 15.9507 18.4747 12 h after dark 13.351933333333333 12.9286 13.793