searing vs sweltering

searing

adj
  • very hot; blistering or boiling 

  • having a sensation of intense sudden heat 

  • damning; critical; scathing 

noun
  • cooking food quickly at high temperature 

  • action of the verb to sear 

sweltering

adj
  • hot and humid; oppressively sticky 

noun
  • The situation of being or feeling hot and humid. 

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