Records for Pendleton Area, Oregon (PDTthr) on 12-31
  Record Highs
  
    - 
      1:  65°F (1996)
    
- 
      2:  62°F (1958)
    
- 
      3:  61°F (1938)
    
 
  Record Lows
  
    - 
      1:  -10°F (1978)
    
- 
      2:  -7°F (2021)
    
- 
      3:  -7°F (1968)
    
 
  Lowest Highs
  
    - 
      1:  44°F (1938)
    
- 
      2:  42°F (1958)
    
- 
      3:  42°F (1912)
    
 
  Highest Lows
  
    - 
      1:  2°F (1978)
    
- 
      2:  2°F (1968)
    
- 
      3:  11°F (1927)
    
 
  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 42.9°F
  Average low is 27°F
 
  Temperature data from 1892 to 2022.
  Record Precipitation
  
    - 
      1:  0.63" (2005)
    
- 
      2:  0.51" (1927)
    
- 
      3:  0.39" (1942)
    
 
  Precipitation data from 1892 to 2022.