Drivers, beware: August is the deadliest month on the road. That’s according to the National Highway Traffic Safety Administration. After studying 17-years’ worth of traffic records, the agency found that more North Americans die in car crashes in August than in any other month of the year.

In fact, for every 100 miles traveled in August, at least one person dies in a crash. That’s an average of one death every 16 minutes.

Experts say the reason roads are so deadly right now is because more people with free time are taking longer trips than at any other time of the year. In fact, busy days in general increase crashes, which is why the deadliest day of any week is Saturday, when more people take trips, run errands, visit family, and go out for fun.

So, when are you least likely to die in a crash?

Studies show that March is the safest month, because people travel less due to winter weather, and because there are no holiday weekends, unless Easter comes early.

As for the safest day of the week, experts say that’s a Tuesday, when there are typically 54 fewer fatalities than on a weekend.