Records for Ontario Area, Oregon (ONOthr) on 08-23
  Record Highs
  
    - 
      1:  106°F (1969)
    
 
    - 
      2:  104°F (1970)
    
 
    - 
      3:  103°F (1967)
    
 
  
 
  Record Lows
  
    - 
      1:  37°F (1960)
    
 
    - 
      2:  38°F (1992)
    
 
    - 
      3:  39°F (1959)
    
 
  
 
  Lowest Highs
  
    - 
      1:  71°F (2022)
    
 
    - 
      2:  66°F (1961)
    
 
    - 
      3:  65°F (2009)
    
 
  
 
  Highest Lows
  
    - 
      1:  69°F (1992)
    
 
    - 
      2:  69°F (1989)
    
 
    - 
      3:  71°F (1960)
    
 
  
 
  Highest August temperature:
  
  113°F on 08-04-1961.
  Lowest August temperature:
  
  33°F on 08-28-1960.
  Average temperature is 72.2°F
  Average high is 89.4°F
  Average low is 55.1°F
 
  Temperature data from 1945 to 2022.
  Record Precipitation
  
    - 
      1:  0.40" (1989)
    
 
    - 
      2:  0.15" (1983)
    
 
    - 
      3:  0.09" (1976)
    
 
  
 
  Precipitation data from 1945 to 2022.