bone-chilling vs freezing cold

bone-chilling

adj

  • Very cold. 

  • With a strong physical or psychological unpleasant effect. 

freezing cold

adj

  • extremely and unpleasantly cold 

noun

  • extreme and unpleasant cold 

How often have the words bone-chilling and freezing cold occurred in a corpus of books? (source: Google Ngram Viewer )