Wikipedia is too complicated for me
In: Chemistry
Relative humidity is a calculation. Relative humidity does not mean anything unless you know the temperature and how to reverse the calculation.
The amount of water there is in the air is much better represented by a value known as absolute humidity. This value is expressed as grams of water vapor per cubic meter of air. If we watch a weather report, we never see absolute humidity. Dewpoint however happens to be the best representation of absolute humidity.
Why does this matter? 50% relative humidity can be either absurdly dry or absurdly humid depending on the temperature. A dewpoint of 50F however is always going to be comfortable air. Anything lower than 40F is going to be very dry, 60F starts to feel humid, 70F is very humid, and 80F is oppressively humid.
Latest Answers