Records for Waterloo Area, Iowa (ALOthr) on 05-28
  Record Highs
  
    - 
      1:  95°F (2018)
    
 
    - 
      2:  93°F (2006)
    
 
    - 
      3:  93°F (1998)
    
 
  
 
  Record Lows
  
    - 
      1:  32°F (1965)
    
 
    - 
      2:  35°F (1971)
    
 
    - 
      3:  35°F (1947)
    
 
  
 
  Lowest Highs
  
    - 
      1:  70°F (2006)
    
 
    - 
      2:  67°F (1991)
    
 
    - 
      3:  67°F (1929)
    
 
  
 
  Highest Lows
  
    - 
      1:  50°F (1965)
    
 
    - 
      2:  51°F (2021)
    
 
    - 
      3:  53°F (1915)
    
 
  
 
  Highest May temperature:
  
  108°F on 05-31-1934.
  Lowest May temperature:
  
  22°F on 05-03-2005.
  Average temperature is 66.2°F
  Average high is 77.2°F
  Average low is 55.1°F
 
  Temperature data from 1895 to 2022.
  Record Precipitation
  
    - 
      1:  2.65" (1954)
    
 
    - 
      2:  2.34" (1974)
    
 
    - 
      3:  2.27" (1899)
    
 
  
 
  Precipitation data from 1895 to 2022.