Records for San Diego Area, California (SANthr) on 09-12
  Record Highs
  
    - 
      1:  97°F (1878)
    
- 
      2:  94°F (1971)
    
- 
      3:  90°F (1960)
    
 
  Record Lows
  
    - 
      1:  54°F (1884)
    
- 
      2:  54°F (1876)
    
- 
      3:  55°F (1952)
    
 
  Lowest Highs
  
    - 
      1:  76°F (2015)
    
- 
      2:  75°F (1984)
    
- 
      3:  73°F (2022)
    
 
  Highest Lows
  
    - 
      1:  64°F (1933)
    
- 
      2:  66°F (1894)
    
- 
      3:  67°F (1993)
    
 
  Highest September temperature:
  
  111°F on 09-26-1963.
  Lowest September temperature:
  
  50°F on 09-18-1882.
  Average temperature is 72.2°F
  Average high is 77.6°F
  Average low is 66.7°F
 
  Temperature data from 1874 to 2022.
  Record Precipitation
  
    - 
      1:  0.24" (1939)
    
- 
      2:  0.10" (1874)
    
- 
      3:  0.02" (1959)
    
 
  Precipitation data from 1850 to 2022.