The Canadian HUMIDEX calculator computes the Canadian Humidity Index (HUMIDEX) based on the dry-bulb ambient temperature and the dew-point temperature.
INSTRUCTIONS: Choose units and enter the following:
HUMIDEX: The calculator returns the HUMIDEX.
The humidex (short for humidity index) is an index number used byto describe how hot the weather feels to the average person, by combining the effect of heat and . The humidex is a based on the . It is not equivalent to a dry temperature in degrees Celsius, it is just calculated to look like it.(1) Don't know the dew point? No problem, you can calculate it using the .
Humidex = Tair + h;
h = (5/9)(e-10);
e = 6.11exp[(MwL/R)*(1/273.16 - 1/Tdew)].
The Humidex is designed to represent human heat stress conditions and is not meaningful at cool temperatures.(4)