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.

NORFOLK, Va. — Most summer days, you hear us talk about “humidity” when describing how the air feels. While many people are familiar with the term relative humidity — the percentage of water vapor in ...

Controlling indoor humidity can prevent mold, mildew, allergies and overly dry skin, according to our experts. Shop their top ...

While air is often drier in winter, that doesn't mean that there aren't still damp spaces. Keep them comfortable with the ...