Records for Quincy Area, Illinois (UINthr) on 09-17
  Record Highs
  
    - 
      1:  99°F (1927)
    
- 
      2:  95°F (1954)
    
- 
      3:  94°F (1925)
    
 
  Record Lows
  
    - 
      1:  39°F (1903)
    
- 
      2:  40°F (1943)
    
- 
      3:  40°F (1937)
    
 
  Lowest Highs
  
    - 
      1:  77°F (1931)
    
- 
      2:  75°F (1927)
    
- 
      3:  73°F (1926)
    
 
  Highest Lows
  
    - 
      1:  52°F (1959)
    
- 
      2:  56°F (1903)
    
- 
      3:  56°F (1901)
    
 
  Highest September temperature:
  
  105°F on 09-04-1913.
  Lowest September temperature:
  
  26°F on 09-28-1942.
  Average temperature is 67.6°F
  Average high is 78.6°F
  Average low is 56.6°F
 
  Temperature data from 1901 to 2022.
  Record Precipitation
  
    - 
      1:  2.32" (1944)
    
- 
      2:  2.00" (1978)
    
- 
      3:  1.81" (1968)
    
 
  Precipitation data from 1901 to 2022.