Records for International Falls Area, Minnesota (INLthr) on 09-21
  Record Highs
  
    - 
      1:  83°F (1920)
    
 
    - 
      2:  81°F (2015)
    
 
    - 
      3:  81°F (1914)
    
 
  
 
  Record Lows
  
    - 
      1:  26°F (1956)
    
 
    - 
      2:  27°F (1998)
    
 
    - 
      3:  27°F (1995)
    
 
  
 
  Lowest Highs
  
    - 
      1:  64°F (1908)
    
 
    - 
      2:  61°F (2019)
    
 
    - 
      3:  59°F (1914)
    
 
  
 
  Highest Lows
  
    - 
      1:  40°F (1907)
    
 
    - 
      2:  41°F (1974)
    
 
    - 
      3:  45°F (1995)
    
 
  
 
  Highest September temperature:
  
  96°F on 09-07-1906.
  Lowest September temperature:
  
  19°F on 09-15-2011.
  Average temperature is 52.1°F
  Average high is 64.1°F
  Average low is 40.2°F
 
  Temperature data from 1897 to 2022.
  Record Precipitation
  
    - 
      1:  1.29" (1973)
    
 
    - 
      2:  1.22" (1941)
    
 
    - 
      3:  0.94" (1955)
    
 
  
 
  Precipitation data from 1895 to 2022.