Florida summers are extremely dangerous to children left unattended in vehicles for even a short period of time. It is estimated that the temperature in a vehicle can reach as high as 140 degrees on hot summer days. This extreme temperature can cause serious personal injuries or even death for young children. There are other safety issues with leaving a child in a vehicle that is running with the air conditioner on. A child can accidentally put the vehicle in gear or get injured by an automatic window or a seat belt. Parents and caregivers should not leave children unattended even for a short period of time. The safety and welfare of the children should take priority over convenience. You can read more about the dangers of the summer heat to children in Florida at High Florida Temperatures Are Dangerous to Children.