Records for Quincy Area, Illinois (UINthr) on 09-12
  Record Highs
  
    - 
      1:  99°F (1927)
    
- 
      2:  97°F (1936)
    
- 
      3:  96°F (1939)
    
 
  Record Lows
  
    - 
      1:  35°F (1940)
    
- 
      2:  42°F (2014)
    
- 
      3:  42°F (1902)
    
 
  Lowest Highs
  
    - 
      1:  74°F (1927)
    
- 
      2:  72°F (1978)
    
- 
      3:  72°F (1938)
    
 
  Highest Lows
  
    - 
      1:  55°F (2014)
    
- 
      2:  59°F (1902)
    
- 
      3:  60°F (1989)
    
 
  Highest September temperature:
  
  105°F on 09-04-1913.
  Lowest September temperature:
  
  26°F on 09-28-1942.
  Average temperature is 69.4°F
  Average high is 80.3°F
  Average low is 58.5°F
 
  Temperature data from 1901 to 2022.
  Record Precipitation
  
    - 
      1:  3.53" (1977)
    
- 
      2:  3.10" (1966)
    
- 
      3:  1.39" (1961)
    
 
  Precipitation data from 1901 to 2022.