Records for Ontario Area, Oregon (ONOthr) on 07-21
  Record Highs
  
    - 
      1:  111°F (1959)
    
- 
      2:  110°F (1960)
    
- 
      3:  107°F (2006)
    
 
  Record Lows
  
    - 
      1:  45°F (1949)
    
- 
      2:  47°F (1983)
    
- 
      3:  48°F (1972)
    
 
  Lowest Highs
  
    - 
      1:  74°F (2003)
    
- 
      2:  73°F (1979)
    
- 
      3:  70°F (2015)
    
 
  Highest Lows
  
    - 
      1:  75°F (1954)
    
- 
      2:  78°F (1972)
    
- 
      3:  82°F (1993)
    
 
  Highest July temperature:
  
  113°F on 07-12-1967.
  Lowest July temperature:
  
  34°F on 07-05-1986.
  Average temperature is 78.2°F
  Average high is 95.2°F
  Average low is 61.1°F
 
  Temperature data from 1945 to 2022.
  Record Precipitation
  
    - 
      1:  0.16" (1976)
    
- 
      2:  0.10" (1992)
    
- 
      3:  0.05" (1993)
    
 
  Precipitation data from 1945 to 2022.