As teens look ahead to traveling more while school is out for the summer, the Colorado Department of Transportation reminds them that their actions behind the wheel matter. Traffic fatalities among youth aged 15 to 20 in Colorado reached a tragic record high in 2025, with 86 drivers and passengers killed. The spike marks a 91 percent increase in youth crash deaths since 2015.
The 100 Deadliest Days of Summer – known for a spike in crash injuries and fatalities – is from Memorial Day to Labor Day. During this time period last year, 225 people died on Colorado roadways, 16 percent of whom were between the ages of 15 and 20. According to the National Highway Traffic Safety Administration, teen crashes are the leading cause of death for teens 15 to 18 years old.