Records for Hillsboro Area, Oregon (HIOthr) on 03-14
  Record Highs
  
    - 
      1:  74°F (1947)
    
 
    - 
      2:  71°F (1996)
    
 
    - 
      3:  68°F (1994)
    
 
  
 
  Record Lows
  
    - 
      1:  24°F (1944)
    
 
    - 
      2:  25°F (1941)
    
 
    - 
      3:  26°F (1954)
    
 
  
 
  Lowest Highs
  
    - 
      1:  54°F (2017)
    
 
    - 
      2:  50°F (2015)
    
 
    - 
      3:  48°F (2003)
    
 
  
 
  Highest Lows
  
    - 
      1:  40°F (2020)
    
 
    - 
      2:  45°F (1977)
    
 
    - 
      3:  45°F (1974)
    
 
  
 
  Highest March temperature:
  
  83°F on 03-28-1930.
  Lowest March temperature:
  
  18°F on 03-01-1960.
  Average temperature is 46.1°F
  Average high is 55.8°F
  Average low is 36.4°F
 
  Temperature data from 1929 to 2022.
  Record Precipitation
  
    - 
      1:  1.44" (2015)
    
 
    - 
      2:  0.71" (2016)
    
 
    - 
      3:  0.70" (2017)
    
 
  
 
  Precipitation data from 1929 to 2022.