Records for Rapid City Downtown Area, South Dakota (UNRS2thr) on 08-21
  Record Highs
  
    - 
      1:  99°F (1898)
    
 
    - 
      2:  98°F (2010)
    
 
    - 
      3:  98°F (2008)
    
 
  
 
  Record Lows
  
    - 
      1:  45°F (1964)
    
 
    - 
      2:  45°F (1916)
    
 
    - 
      3:  46°F (1904)
    
 
  
 
  Lowest Highs
  
    - 
      1:  71°F (2008)
    
 
    - 
      2:  69°F (2020)
    
 
    - 
      3:  69°F (2001)
    
 
  
 
  Highest Lows
  
    - 
      1:  58°F (1923)
    
 
    - 
      2:  61°F (1966)
    
 
    - 
      3:  62°F (1964)
    
 
  
 
  Highest August temperature:
  
  106°F on 08-01-1900.
  Lowest August temperature:
  
  36°F on 08-28-1911.
  Average temperature is 71°F
  Average high is 82.8°F
  Average low is 59.1°F
 
  Temperature data from 1888 to 2022.
  Record Precipitation
  
    - 
      1:  0.60" (1964)
    
 
    - 
      2:  0.50" (1903)
    
 
    - 
      3:  0.42" (1924)
    
 
  
 
  Precipitation data from 1888 to 2022.