While we usually think of tornadoes or floods as the deadliest weather hazards, car accidents kill more Americans each year than any other weather danger.

Wintry weather car accidents have killed 4,000 people over the past five years.  Ohio has been the deadliest state for winter car accidents, more than 420 deaths in the past five years.  The state's average is 86 deadly accidents per year.

The five deadliest states for wintertime car accidents which includes average accidents from 2011 to 2015:  Ohio (86), Michigan (83), Pennsylvania (65), Indiana (49), and New York (46).

Experts have pointed out a common ingredient, people driving too fast for road conditions.  People need to keep in mind that the posted speed limit is for optimal driving conditions.  Here's more from USA Today.