Records for Dayton Area, Ohio (DAYthr) on 05-18
  Record Highs
  
    - 
      1:  93°F (1962)
    
- 
      2:  90°F (1911)
    
- 
      3:  90°F (1906)
    
 
  Record Lows
  
    - 
      1:  35°F (1973)
    
- 
      2:  38°F (2009)
    
- 
      3:  38°F (2002)
    
 
  Lowest Highs
  
    - 
      1:  69°F (2017)
    
- 
      2:  68°F (2015)
    
- 
      3:  66°F (1996)
    
 
  Highest Lows
  
    - 
      1:  49°F (1981)
    
- 
      2:  51°F (2002)
    
- 
      3:  52°F (1904)
    
 
  Highest May temperature:
  
  98°F on 05-28-1911.
  Lowest May temperature:
  
  26°F on 05-01-1963.
  Average temperature is 64.5°F
  Average high is 75.5°F
  Average low is 53.6°F
 
  Temperature data from 1893 to 2022.
  Record Precipitation
  
    - 
      1:  1.88" (1995)
    
- 
      2:  1.75" (2020)
    
- 
      3:  1.75" (2004)
    
 
  Precipitation data from 1893 to 2022.