It's the hottest time of the year -- we're staring down 120 degrees early next week.

As temperatures heat up, the health dangers also increase, especially for kids.

Here are five things you need to know about Arizona and hot car deaths, according to meteorologist Jan Null, who has spent a decade researching kids and hot car deaths.

1. A vehicle can become deadly around 80 degrees.

2. Arizona saw 31 hot car deaths between 1998 and 2006, fourth-most in the nation.

3. On a 120-degree day, the inside of a car can reach 150 degrees in just 20 minutes.

4. The months with the most deaths are June, July and August, as you may expect.

5. Hot car deaths increase in frequency toward the end of the week.

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