Records for Riverside Area, California (RALthr) on 12-16
  Record Highs
  
    - 
      1:  86°F (1939)
    
- 
      2:  85°F (1980)
    
- 
      3:  85°F (1958)
    
 
  Record Lows
  
    - 
      1:  28°F (1948)
    
- 
      2:  28°F (1945)
    
- 
      3:  28°F (1912)
    
 
  Lowest Highs
  
    - 
      1:  67°F (1998)
    
- 
      2:  56°F (1936)
    
- 
      3:  54°F (1957)
    
 
  Highest Lows
  
    - 
      1:  49°F (1965)
    
- 
      2:  50°F (1987)
    
- 
      3:  50°F (1967)
    
 
  Highest December temperature:
  
  94°F on 12-03-1958.
  Lowest December temperature:
  
  21°F on 12-12-1949.
  Average temperature is 55.7°F
  Average high is 68.5°F
  Average low is 42.9°F
 
  Temperature data from 1893 to 2022.
  Record Precipitation
  
    - 
      1:  1.22" (2002)
    
- 
      2:  0.95" (1924)
    
- 
      3:  0.59" (1988)
    
 
  Precipitation data from 1893 to 2022.