cold as a well-digger's arse vs freezing cold

cold as a well-digger's arse

adj

  • Very cold. 

freezing cold

adj

  • extremely and unpleasantly cold 

noun

  • extreme and unpleasant cold 

How often have the words cold as a well-digger's arse and freezing cold occurred in a corpus of books? (source: Google Ngram Viewer )