Records for Waterloo Area, Iowa (ALOthr) on 05-27
  Record Highs
  
    - 
      1:  97°F (2018)
    
 
    - 
      2:  93°F (1900)
    
 
    - 
      3:  92°F (2012)
    
 
  
 
  Record Lows
  
    - 
      1:  32°F (1971)
    
 
    - 
      2:  34°F (1907)
    
 
    - 
      3:  35°F (1992)
    
 
  
 
  Lowest Highs
  
    - 
      1:  72°F (1914)
    
 
    - 
      2:  68°F (2012)
    
 
    - 
      3:  68°F (1911)
    
 
  
 
  Highest Lows
  
    - 
      1:  48°F (1965)
    
 
    - 
      2:  54°F (1996)
    
 
    - 
      3:  55°F (1984)
    
 
  
 
  Highest May temperature:
  
  108°F on 05-31-1934.
  Lowest May temperature:
  
  22°F on 05-03-2005.
  Average temperature is 65.8°F
  Average high is 76.9°F
  Average low is 54.7°F
 
  Temperature data from 1895 to 2022.
  Record Precipitation
  
    - 
      1:  2.75" (1973)
    
 
    - 
      2:  2.52" (1903)
    
 
    - 
      3:  1.42" (1970)
    
 
  
 
  Precipitation data from 1895 to 2022.