By the numbers

Hyperthermia

340: Number of U.S. children who have died in hot cars in the past 10 years

41: Number that occurred in Texas, the most of any state

16: Number of deaths nationwide so far this year

4: Age of a boy who died in a car in New Orleans on Father’s Day

40: Degrees by which the temperature inside a vehicle can rise in an hour

Source: The Associated Press