If there is too much time between the behavior and the penalty, the message is less clear to the adolescent. The consequences for a week or two or three weekends is probably enough to get the message across without losing it over time. A month can be too long. As a parent of an adolescent, a shorter time gives you less chance to give in and reduce the period of consequences.
Consider ways to let the adolescent gain a reduction in consequences
You can link the connection of tasks that would allow teenagers to get a reduction in the period of consequences if they wish. This could include things like big jobs around the house (cleaning the garage or removing and waxing the kitchen floor) or volunteering time at a local social service agency.
Solve problems together
The application of the consequence may not be enough to prevent a recurrence of the problem. You will need to pay attention to your teen's behavior and help him understand why he broke the rule and what he will do in the future so that it doesn't happen again. You can ask him to identify the problem and develop five possible solutions. Talk about the pros and cons of each of them. You can allow him to reduce the time of consequences by writing a report on the unacceptable behavior and developing a plan not to repeat it.
The consequences in the behavior of adolescents can be an important tool for parents in the discipline to use in the education of their children. But like any tool, you should use it when it's appropriate and for the right kind of job. Follow a few simple principles it will make consequences a very effective tool to change the behavior in the lives of adolescents.