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?

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

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 ...

Humidity - arguably the most important factor in deciphering how pleasant a day will be. We all know 90 degrees with high humidity and 90 degrees with no humidity is a different ball game. The ...

Relative humidity is not a good way to tell if we have muggy air on the way. Here’s why. The key word in relative humidity is relative. The humidity percentage is given, relative to how much moisture ...

Meteorologist Ray Petelin joined the KDKA Weather Team in October 2018, but is no stranger to the weather in Pittsburgh and Western Pennsylvania. He has been forecasting in Pittsburgh since 2011 and ...

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 ...