Records for Rapid City Area, South Dakota (RAPthr) on 05-23
  Record Highs
  
    - 
      1:  87°F (1960)
    
 
    - 
      2:  87°F (1951)
    
 
    - 
      3:  86°F (1984)
    
 
  
 
  Record Lows
  
    - 
      1:  24°F (2002)
    
 
    - 
      2:  32°F (1974)
    
 
    - 
      3:  33°F (1949)
    
 
  
 
  Lowest Highs
  
    - 
      1:  60°F (2006)
    
 
    - 
      2:  56°F (1948)
    
 
    - 
      3:  55°F (2000)
    
 
  
 
  Highest Lows
  
    - 
      1:  42°F (1949)
    
 
    - 
      2:  48°F (2002)
    
 
    - 
      3:  48°F (1976)
    
 
  
 
  Highest May temperature:
  
  98°F on 05-27-1969.
  Lowest May temperature:
  
  18°F on 05-01-1950.
  Average temperature is 57.6°F
  Average high is 67.9°F
  Average low is 47.2°F
 
  Temperature data from 1942 to 2022.
  Record Precipitation
  
    - 
      1:  2.35" (1946)
    
 
    - 
      2:  1.74" (1996)
    
 
    - 
      3:  1.50" (1971)
    
 
  
 
  Precipitation data from 1942 to 2022.