Fairfield, California
  ID: USC00042934  Latitude:  38.2736  Longitude: -122.0678
  Elevation: 40 feet (  12.2 meters)
  Source: NOAA Climate Normals 1991-2020
  
  
      
  
  
   
  
      
  
  
    Precipitation Total: 24.53 in., 9.66 cm.
   
  
      
  
  
   
  
      
  Monthly Data Table for Fairfield, California
  Monthly Data from NOAA Monthly Normals 2006-2020
  
  
    Imperial Units
    
      | Statistic | Units | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 
          
      | Maximum Temperature | °F | 58.3 | 62.6 | 66.1 | 72.1 | 78.2 | 86.5 | 90.3 | 89.1 | 87.3 | 78.4 | 66.3 | 57.5 | 
          
      | Minimum Temperature | °F | 40.5 | 42.9 | 45.0 | 48.2 | 52.2 | 56.4 | 57.9 | 57.7 | 57.1 | 52.8 | 45.5 | 40.0 | 
      
      
          
      | Heating Degree Days | °F | 483.6 | 343.1 | 293.9 | 168.2 | 70.7 | 14.7 | 2.5 | 1.2 | 7.0 | 64.2 | 276.5 | 503.7 | 
          
      | Cooling Degree Days | °F | 0.0 | 0.1 | 1.0 | 22.7 | 76.9 | 208.1 | 284.5 | 261.6 | 222.9 | 82.8 | 3.6 | 0.1 | 
          
      | Precipitation | I | 3.9 | 4.4 | 3.5 | 1.8 | 0.6 | 0.1 | 0.0 | 0.0 | 0.1 | 1.2 | 2.3 | 4.1 | 
  
   
  
  
  
  
    Metric Units
    
      | Statistic | Units | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 
          
      | Maximum Temperature | °C | 14.6 | 17.0 | 18.9 | 22.3 | 25.7 | 30.3 | 32.4 | 31.7 | 30.7 | 25.8 | 19.1 | 14.2 | 
          
      | Minimum Temperature | °C | 4.7 | 6.1 | 7.2 | 9.0 | 11.2 | 13.6 | 14.4 | 14.3 | 13.9 | 11.6 | 7.5 | 4.4 | 
      
      
          
      | Heating Degree Days | °C | 250.9 | 172.8 | 145.5 | 75.7 | 21.5 | -9.6 | -16.4 | -17.1 | -13.9 | 17.9 | 135.8 | 262.1 | 
          
      | Cooling Degree Days | °C | -17.8 | -17.7 | -17.2 | -5.2 | 24.9 | 97.8 | 140.3 | 127.6 | 106.1 | 28.2 | -15.8 | -17.7 | 
          
      | Precipitation | M | 9.9 | 11.1 | 8.8 | 4.6 | 1.4 | 0.4 | 0.0 | 0.0 | 0.3 | 3.0 | 5.8 | 10.4 |