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.

Dew point is a measure of moisture in the air. Dew points above 70° feel tropical, dew points above 60° feel humid. In the winter, if dew points drop below 0, it indicates a very dry and cold air mass ...

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 ...

Hot summers are nothing new for much of the United States, but the combination of heat and humidity has taken on a truly antagonistic role this year, pushing us closer to our melting points in an ...

PHOENIX (AZFamily) — Did you notice a bit of humidity in the air on Friday morning? If you did, it’s not your imagination. Dew points crept into the 50s, and will likely hang out in the 50s and 60s ...