It's a T-shirt kind of day in Washington, DC: 85 degrees with 63 percent humidity. We all know those numbers mean hot, but what exactly does that humidity percentage tell us? And why should we care?

FIGURE 1. Relative indoor humidity (violet) and absolute exterior humidity (orange) displayed over 26 months. For the majority of winter months, rh ranged between 35 and 60 percent. December 10, 2018 ...

We will analyze the limit conditions under which an air conditioner (vapor-compression refrigeration cycle equipment) 'ceases ...

It’s often said that it’s not the heat that gets you; it’s the humidity. We had our first serving of the uncomfortable and ...

Iowans are no strangers to warmer days that come with the sensation of feeling sticky. But what’s the reason for it? Here’s what to look for the next time you’re looking at the weather forecast. What ...

I know in Houston, we hear the term humidity which is used to correlate to how muggy it may feel outside. But what actually is humidity and what does it represent? Humidity is the measurement of water ...

Meteorologist Paul Douglas answers reader questions about the weather and other natural phenomena every couple of weeks. Submit your own questions below. I’ve lived in other parts of the country, and ...

Imagine you’re sitting among friends on the porch with a big pitcher of ice cold lemonade. The heat is searing and the air is still and stifling. It’s almost hard to breathe. You look to your friends ...