It’s not relative humidity which tells us how we feel, it’s the dew point. When the dew point reaches about 60F there is about 10 grams of water in a kilogram of air. At this time most of us ...

At this point, you may be wondering how relative humidity is measured. Let's find out. The equation for calculating relative humidity looks like this: Actual vapor density/saturation vapor density ...

Relative humidity is indeed a measure of how much moisture is in the air ... To calculate the heat index, you can use the equation of: HI = -42.379 + 2.04901523*T + 10.14333127*RH ...

Putting this to use, it's easy to figure out the dew point, and thus the expected comfort level, directly from the relative humidity and the temperature: for instance, if it is 30 °C outside, and ...

The relative humidity is dependent on the air temperature, while the dew point isn't. As the air warms up, the relative humidity goes down, but the moisture levels in the air haven't changed.

A relative humidity of 88% just means that the air can hold 12% more water vapor before it's full, or saturated. Relative humidity can literally change by the minute. That's because it's directly ...