Never leave a child or pets alone inside hot cars.
Cars can heat to dangerous levels quickly, even if outsides temperatures are comfortable, in minutres temperatures inside the car are deadly.
The National Highway Traffic Safety Administration has warned that on a 60° F day—something akin to spring weather—the temperature inside a vehicle can reach a dangerous 110° F over the course of several hours.
The threshold for heatstroke in children is when the internal body temperature reaches about 104° F. And a child is at serious risk of death if their internal body temperature reaches 107° F, according to medical experts.
Heatstroke risk is a year-round threat in some regions with mild winters, including the South and Southwest.
The hotter it gets, the more you’re going to have to worry.
One of the things that might help you remember that your child is in the backseat of your car is understanding that it’s illegal to leave your child there. California passed Kaitlyn’s Law in 2001. The law was created in memory of Kaitlyn Russel, who was only six months old when she died after her babysitter forgot her in a hot car for over two hours.