Records for Pendleton Area, Oregon (PDTthr) on 12-18
  Record Highs
  
    - 
      1:  68°F (1917)
    
 
    - 
      2:  59°F (1936)
    
 
    - 
      3:  59°F (1933)
    
 
  
 
  Record Lows
  
    - 
      1:  -5°F (1924)
    
 
    - 
      2:  -4°F (1984)
    
 
    - 
      3:  -2°F (1964)
    
 
  
 
  Lowest Highs
  
    - 
      1:  57°F (1917)
    
 
    - 
      2:  51°F (1933)
    
 
    - 
      3:  46°F (2018)
    
 
  
 
  Highest Lows
  
    - 
      1:  6°F (1964)
    
 
    - 
      2:  11°F (1924)
    
 
    - 
      3:  14°F (1984)
    
 
  
 
  Highest December temperature:
  
  75°F on 12-12-1921.
  Lowest December temperature:
  
  -28°F on 12-13-1919.
  Average temperature is 35°F
  Average high is 42.7°F
  Average low is 27.2°F
 
  Temperature data from 1892 to 2022.
  Record Precipitation
  
    - 
      1:  0.85" (1929)
    
 
    - 
      2:  0.30" (1921)
    
 
    - 
      3:  0.30" (1898)
    
 
  
 
  Precipitation data from 1892 to 2022.