With the online calculator, you can enter the temperature and either the relative humidity or the dew point to calculate the heat index temperature.

GREENSBORO, N.C. — Two common weather terms you'll hear many times in the warmer part of the year are "dew point" and "relative humidity". While both relate to moisture in the air and the ...

Relative humidity is the amount of water vapor in ... The humidex is the most common calculation of apparent temperature in Canada and was invented here. A mathematical equation takes air ...