It's summer in Texas. That means it's hot, but just how hot? That depends on what temperature you pay attention to. In our reporting, we often provide two different numbers. There's the air temperature – that's the temperature of the outdoor air in the shade. Then, there's the "heat index" – that's how hot it's supposed to feel outside, when you take humidity into account.
Some skeptics argue that reporting those two numbers is unnecessary or even misleading. "Why bother tacking on a few extra degrees whenever you read the weather?" they might argue. "Hot is hot!"