Weather Exposure

Wolfram|Alpha provides tools for computing the effects of weather exposure on the human body. Calculate the negative effects of exposure to the cold. Determine the perceived temperature accounting for wind speed and humidity.

Heat Index

Get current and historical heat index data from around the world.

Get the heat index for a location:

Find historical heat indices:

Create a heat index chart:


Calculate the exposure time for frostbite using temperature and wind speed.

Compute the exposure time for frostbite:

Wind Chill

Obtain wind chill temperatures based on location or wind speed and temperature.

Find current wind chills across the world:

Get historical wind chill data:

Calculate the wind chill:



Calculate the exposure time to risk hypothermia.

Estimate cold water survival time: