It's sounds like a "duh" statement, but research by the Stanford University School of Medicine has revealed that even on a relatively cool day the temperature inside a parked car can spike quickly and dramatically. The significant factor is not the temperature of the ambient air but whether or not the sun is shining on the car. The study found that regardless of the ambient temperature (ranging from 72-96 degrees in the study), a car's interior could heat up an average of 40 degrees F within an hour if the sun is directly hitting it. We think this is pretty important news, as many people erroneously assume that if it's not that hot outside the kids will be alright inside a parked car.

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