The dew point is the temperature that the air would have to be cooled to (at constant pressure) in order to reach saturation. As the temperature drops to the dew point, water vapor molecules condense.

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 ...

If you’re looking for a single number that’ll help you best determine whether or not it’s muggy outside, you’ll want to give this a read. On Tuesday afternoon, it was 71 degrees with a 56 degree ...

(WHTM) — When temperatures rise, sometimes the air can feel dry and comfortable. But, sometimes it can feel downright tropical outside. This is caused by moisture in the air and it makes the air ...

The heat index is a measure of how hot it really feels on your body when relative humidity is factored in with the actual air temperature. Since heat index values were devised for shady, light wind ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. First, let’s define relative humidity.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. We hear it all the time around here: “it’s ...

With astronomical summer right around the corner this upcoming Thursday, it's about time we enter a period of excessive heat across eastern Iowa. Actual air temperatures will climb into the 90s in ...

AUSTIN (KXAN) — “It’s not the heat, it’s the humidity” is part of every Central Texan’s vernacular. But did you know there actually is some truth to this statement? The heat index, also called ...

TUCSON, Ariz. (KGUN) — The First Warning weather team often refers to dew point and humidity. Most people know these terms have something to do with moisture, but a lot of people don’t really ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Popular usage of “humidity” refers to a ...