Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 07-10
  Record Highs
  
    - 
      1:  99°F (1993)
    
- 
      2:  99°F (1988)
    
- 
      3:  95°F (2007)
    
 
  Record Lows
  
    - 
      1:  53°F (1963)
    
- 
      2:  55°F (1983)
    
- 
      3:  55°F (1976)
    
 
  Lowest Highs
  
    - 
      1:  74°F (2013)
    
- 
      2:  74°F (1987)
    
- 
      3:  73°F (2020)
    
 
  Highest Lows
  
    - 
      1:  73°F (1969)
    
- 
      2:  77°F (1979)
    
- 
      3:  79°F (2003)
    
 
  Highest July temperature:
  
  105°F on 07-22-2011.
  Lowest July temperature:
  
  41°F on 07-01-1988.
  Average temperature is 77.4°F
  Average high is 87.4°F
  Average low is 67.4°F
 
  Temperature data from 1960 to 2022.
  Record Precipitation
  
    - 
      1:  1.63" (1995)
    
- 
      2:  1.41" (2003)
    
- 
      3:  1.05" (1975)
    
 
  Precipitation data from 1960 to 2022.