Records for Hillsboro Area, Oregon (HIOthr) on 08-09
  Record Highs
  
    - 
      1:  104°F (1981)
    
 
    - 
      2:  103°F (1971)
    
 
    - 
      3:  101°F (1996)
    
 
  
 
  Record Lows
  
    - 
      1:  40°F (1959)
    
 
    - 
      2:  41°F (1954)
    
 
    - 
      3:  42°F (1931)
    
 
  
 
  Lowest Highs
  
    - 
      1:  63°F (1991)
    
 
    - 
      2:  62°F (1981)
    
 
    - 
      3:  61°F (2019)
    
 
  
 
  Highest Lows
  
    - 
      1:  68°F (2010)
    
 
    - 
      2:  70°F (2016)
    
 
    - 
      3:  70°F (2011)
    
 
  
 
  Highest August temperature:
  
  106°F on 08-17-1977.
  Lowest August temperature:
  
  30°F on 08-30-1930.
  Average temperature is 68°F
  Average high is 83.4°F
  Average low is 52.6°F
 
  Temperature data from 1929 to 2022.
  Record Precipitation
  
    - 
      1:  0.14" (1937)
    
 
    - 
      2:  0.12" (2008)
    
 
    - 
      3:  0.10" (1957)
    
 
  
 
  Precipitation data from 1929 to 2022.