Records for Martinsburg Area, West Virginia (MRBthr) on 05-18
  Record Highs
  
    - 
      1:  96°F (1911)
    
 
    - 
      2:  94°F (1906)
    
 
    - 
      3:  92°F (1996)
    
 
  
 
  Record Lows
  
    - 
      1:  35°F (1955)
    
 
    - 
      2:  37°F (1973)
    
 
    - 
      3:  38°F (1983)
    
 
  
 
  Lowest Highs
  
    - 
      1:  66°F (2015)
    
 
    - 
      2:  65°F (2017)
    
 
    - 
      3:  64°F (1896)
    
 
  
 
  Highest Lows
  
    - 
      1:  54°F (2003)
    
 
    - 
      2:  55°F (2010)
    
 
    - 
      3:  55°F (2007)
    
 
  
 
  Highest May temperature:
  
  100°F on 05-21-1934.
  Lowest May temperature:
  
  26°F on 05-11-1966.
  Average temperature is 63.6°F
  Average high is 75.4°F
  Average low is 51.9°F
 
  Temperature data from 1891 to 2022.
  Record Precipitation
  
    - 
      1:  2.20" (1922)
    
 
    - 
      2:  1.30" (1899)
    
 
    - 
      3:  1.05" (2015)
    
 
  
 
  Precipitation data from 1891 to 2022.