There are multiple ways to describe how wet the air is (yes, pretty much all air is wet). What I mean by that is there are water molecules tucked in between the gases like nitrogen and oxygen that ...

I love getting your questions, and I got a great one from Steve! He asks: It's pouring rain, but the outdoor humidity gauge says 74% relative humidity. How's that possible? Shouldn't it be 100%? This ...

Mike Moss: Relative humidity is not related to temperature and dew point in quite that direct a manner, although they certainly are interdependent quantities. There are some online calculators that ...

Before you step outside, you may want to know how humid, or "sticky" it feels. That comes down to knowing the dew point. Dew point is more commonly discussed in the summertime and is a good measure of ...

Every summer, I get asked this question: "Why don't you use relative humidity? I don't care about the dew point." The thing is - you should care about the dew point more. The dew point is quite ...

DEHUM: The basic operating principle of a dehumidifier is to remove water vapor from the air without overcooling the space. April 20, 2026 Humidity, aside from temperature, is perhaps the most ...

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 ...