Records for San Diego Area, California (SANthr) on 08-18
  Record Highs
  
    - 
      1:  90°F (1986)
    
- 
      2:  89°F (1890)
    
- 
      3:  89°F (1885)
    
 
  Record Lows
  
    - 
      1:  59°F (1932)
    
- 
      2:  59°F (1918)
    
- 
      3:  60°F (1921)
    
 
  Lowest Highs
  
    - 
      1:  75°F (1984)
    
- 
      2:  73°F (2021)
    
- 
      3:  73°F (2018)
    
 
  Highest Lows
  
    - 
      1:  68°F (1912)
    
- 
      2:  68°F (1899)
    
- 
      3:  69°F (2002)
    
 
  Highest August temperature:
  
  98°F on 08-31-1955.
  Lowest August temperature:
  
  54°F on 08-19-1884.
  Average temperature is 72.5°F
  Average high is 77.5°F
  Average low is 67.6°F
 
  Temperature data from 1874 to 2022.
  Record Precipitation
  
    - 
      1:  0.83" (1945)
    
- 
      2:  0.28" (1880)
    
- 
      3:  0.07" (1899)
    
 
  Precipitation data from 1850 to 2022.