Relative humidity measures how much moisture is in the air compared to how much it could hold at a given temperature. It is simply the dew point temperature divided by the air temperature, times 100.

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 ...

Heat waves are becoming commonplace, and so too is high humidity, which can strain the electrical grid, hurt the economy, and ...

Last week, we talked about why the dew point is a better measure of mugginess instead of relative humidity. When the dew point gets above 70°, that is usually due to tropical air being sent into North ...