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.

DAVENPORT, Iowa (KWQC) - As critical fire danger spreads across the region through spring, understanding one simple weather concept could make the difference: dew point. Relative Humidity (or RH) ...

Is wet bulb temperature the same as dew point? Mike Moss: In a saturated air parcel (with relative humidity 100%) the wet bulb, dry bulb and dew point temperatures are all the same. In a drier parcel ...

SEATTLE — It's foggy, cloudy, and raining in the Pacific Northwest much of the winter. Plus, the humidity is at 100%. But why does it still feel dry? Why do your lips still get chapped and your skin ...