Relative humidity: The percentage of saturation of air; the ratio, expressed as a percentage, of the actual amount of water vapor in a given volume of air to the amount that would be present were the ...

Nathan of Orion asks why humidity always seems higher in the early morning than at other times of the day. The humidity to which he refers is relative humidity. And, he’s right; it is almost always ...

Relative humidity: The percentage of saturation of air; the ratio (expressed as a percentage) of the amount of water vapor actually in the air to the maximum amount the air can hold at that ...