Records for Bismarck Area, North Dakota (BISthr) on 05-21
  Record Highs
  
    - 
      1:  96°F (1980)
    
- 
      2:  93°F (1955)
    
- 
      3:  93°F (1925)
    
 
  Record Lows
  
    - 
      1:  29°F (1963)
    
- 
      2:  29°F (1882)
    
- 
      3:  30°F (1895)
    
 
  Lowest Highs
  
    - 
      1:  63°F (1980)
    
- 
      2:  61°F (1964)
    
- 
      3:  59°F (2005)
    
 
  Highest Lows
  
    - 
      1:  44°F (1908)
    
- 
      2:  47°F (1882)
    
- 
      3:  48°F (1963)
    
 
  Highest May temperature:
  
  102°F on 05-28-1934.
  Lowest May temperature:
  
  13°F on 05-03-1907.
  Average temperature is 56.6°F
  Average high is 68.4°F
  Average low is 44.8°F
 
  Temperature data from 1874 to 2022.
  Record Precipitation
  
    - 
      1:  0.93" (1962)
    
- 
      2:  0.87" (1912)
    
- 
      3:  0.83" (1927)
    
 
  Precipitation data from 1874 to 2022.