Forbes contributors publish independent expert analyses and insights. I make maps, and discuss the climate. Aug 23, 2018, 11:25am EDT Dec 10, 2021, 08:30am EST This article is more than 7 years old.

Add Yahoo as a preferred source to see more of our stories on Google. YOUNGSTOWN, Ohio (WKBN) – There might not be a more misunderstood phrase in meteorology than “relative humidity.” Every summer ...

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?

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 ...