cloudy vs foggy

cloudy

adj
  • Covered with or characterised by clouds; overcast. 

  • Using or relating to cloud computing. 

  • Containing pith 

  • Not transparent or clear. 

  • Uncertain; unclear. 

foggy

adj
  • Obscured by mist or fog; unclear; hazy 

  • Being, covered with, or pertaining to fog (“tall grass etc that grows after, or is left after, cutting; moss”) 

  • Confused, befuddled, etc. 

How often have the words cloudy and foggy occurred in a corpus of books? (source: Google Ngram Viewer )