When referring to the mugginess of the air, meteorologists will point to dew point rather than relative humidity. Relative humidity is indeed a measure of how much moisture is in the air relative to ...

Why is it that when it's raining, the relative humidity isn't 100%?

Relative humidity and dew point both give us an idea of the amount of moisture in the atmosphere; however, only dew point is a true measurement of the atmospheric moisture. Relative humidity is ...

Most of the time when it is raining the relative humidity is 90-99 percent, but not often is it 100 percent. Clouds form when invisible water vapor gas condenses into visible water droplets, and rain ...

TOLEDO, Ohio — As warm summer days continue throughout northwest Ohio and southeast Michigan, so does the chance of hot days becoming more common over the years. Let us set the stage: you are watching ...