How quickly does a car’s interior temperature rise – even on a cool day?

Written by on July 15, 2014 in Uncategorized

How much does the heat rise in a car when left out in daylight, and how quickly? Much more than most people realize.


See source data for this graphic, from San Francisco State University, at:

As this graphic shows, if you leave your dog in a car for twenty minutes when it’s 70 degrees, within twenty minutes the interior temperature can rise to nearly 100 degrees – which can cause brain damage or death – and it matters very little whether the windows are cracked or open.

Go to this page to get reliable scientific and technical information about why you should never leave your dog in an enclosed car, even on a relatively “cool” day.

About the Author

About the Author: My name is Jon Sutz. I am a dog-loving multimedia graphic designer, writer and creative consultant, in Charlottesville, VA (bio). But the most important, joyous job I've ever had, was as "dad" to Shayna, the miracle dog who helped to save my life after 9/11, and about whom I wrote my first book, "Saved By Shayna: Life Lessons From A Miracle Dog." Learn more about Shayna at her website. In tribute to Shayna, I developed to help raise awareness of the dangers of leaving one's dog in a hot car. .


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