Records for Rapid City Area, South Dakota (RAPthr) on 09-08
  Record Highs
  
    - 
      1:  103°F (1959)
    
- 
      2:  98°F (2005)
    
- 
      3:  96°F (1994)
    
 
  Record Lows
  
    - 
      1:  30°F (2020)
    
- 
      2:  36°F (1962)
    
- 
      3:  37°F (2001)
    
 
  Lowest Highs
  
    - 
      1:  63°F (2013)
    
- 
      2:  63°F (1963)
    
- 
      3:  62°F (1983)
    
 
  Highest Lows
  
    - 
      1:  44°F (2020)
    
- 
      2:  54°F (1985)
    
- 
      3:  54°F (1946)
    
 
  Highest September temperature:
  
  104°F on 09-02-1960.
  Lowest September temperature:
  
  18°F on 09-24-1985.
  Average temperature is 65.8°F
  Average high is 77.8°F
  Average low is 53.9°F
 
  Temperature data from 1942 to 2022.
  Record Precipitation
  
    - 
      1:  0.94" (1989)
    
- 
      2:  0.42" (2013)
    
- 
      3:  0.30" (1946)
    
 
  Precipitation data from 1942 to 2022.