Records for San Diego Area, California (SANthr) on 09-20
  Record Highs
  
    - 
      1:  100°F (1939)
    
- 
      2:  92°F (2015)
    
- 
      3:  87°F (1951)
    
 
  Record Lows
  
    - 
      1:  53°F (1893)
    
- 
      2:  53°F (1882)
    
- 
      3:  54°F (1896)
    
 
  Lowest Highs
  
    - 
      1:  75°F (1983)
    
- 
      2:  74°F (1984)
    
- 
      3:  74°F (1939)
    
 
  Highest Lows
  
    - 
      1:  67°F (1928)
    
- 
      2:  67°F (1895)
    
- 
      3:  67°F (1880)
    
 
  Highest September temperature:
  
  111°F on 09-26-1963.
  Lowest September temperature:
  
  50°F on 09-18-1882.
  Average temperature is 71.4°F
  Average high is 76.9°F
  Average low is 65.9°F
 
  Temperature data from 1874 to 2022.
  Record Precipitation
  
    - 
      1:  0.24" (1991)
    
- 
      2:  0.24" (1939)
    
- 
      3:  0.15" (2016)
    
 
  Precipitation data from 1850 to 2022.