On average, high heat is the biggest killer from extreme weather in the United States. There is, on average, 115 fatalities from heat each year, compared to 71 from flooding, according to the National Weather Service.

Tornadoes were the third highest killer, followed by lightning and cold weather.

These results did not take hurricanes into account, which can be highly variable from year to year.

Story by AccuWeather.com Senior Meteorologist Brett Anderson.