Wind  Chill

Hazards - Chart - Calculator - Current WC

What is a dangerous wind chill?

In our part of the midwest, wind chills below -20 are generally considered hazardous. People are at risk of frostbite and hypothermia if they do not take appropriate precautions. Wind Chill Advisories will be issued for Iowa, northern Illinois, and extreme northeast Missouri when the wind chill is expected to drop below -20 degrees F.  

When the wind chill drops below -30 degrees F, conditions become life-threatening.  Frostbite and hypothermia can develop in a very short time. Therefore, a Wind Chill Warning would be issued for wind chills falling below this level.  

Note that parts of the country to the north and south may have slightly different criteria due to differences in climatology.

Where can I get the current wind chill?

The current wind chill temperature is reported every hour (when weather conditions warrant) in the Hourly Weather Roundup

How can I calculate the wind chill?

Printable Chart (in PDF format)

Wind Chill Calculator:



Wind Speed (MPH) =
Air Temperature (ºF) =

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