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 ...

Relative humidity and dew point are often mistaken for the same thing, and can be sources of confusion. We have recently gotten questions about the differences between the two, and which is more ...

Industry leaders realized hundreds of years ago that their processes and machines operate best when the indoor relative humidity is maintained at an optimum level for their process. They found it was ...