Lewes, Delaware
  ID: USC00075320  Latitude:  38.7842  Longitude:  -75.1581
  Elevation: 9.8 feet (   3.0 meters)
  Source: NOAA Climate Normals 1991-2020
  
  
      
  
  
   
  
      
  
  
    Precipitation Total: 47.28 in., 18.61 cm.
   
  
      
  
  
   
  
      
  Monthly Data Table for Lewes, Delaware
  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 | 46.7 | 48.4 | 55.1 | 65.5 | 74.4 | 83.1 | 87.8 | 85.2 | 79.5 | 69.2 | 58.5 | 51.3 | 
          
      | Minimum Temperature | °F | 30.2 | 31.0 | 37.3 | 46.6 | 56.7 | 66.1 | 71.2 | 69.5 | 64.8 | 53.0 | 41.7 | 35.1 | 
      
      
          
      | Heating Degree Days | °F | 822.6 | 708.2 | 583.4 | 286.8 | 76.0 | 4.3 | 0.0 | 0.3 | 5.6 | 167.2 | 447.3 | 675.8 | 
          
      | Cooling Degree Days | °F | 0.0 | 0.0 | 0.8 | 18.4 | 93.1 | 292.1 | 449.2 | 383.1 | 219.8 | 46.5 | 0.5 | 0.0 | 
          
      | Precipitation | I | 3.1 | 3.5 | 3.5 | 3.8 | 3.8 | 4.6 | 4.4 | 5.1 | 4.5 | 5.1 | 3.4 | 4.4 | 
  
   
  
  
  
  
    Metric Units
    
      | Statistic | Units | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 
          
      | Maximum Temperature | °C | 8.2 | 9.1 | 12.8 | 18.6 | 23.6 | 28.4 | 31.0 | 29.6 | 26.4 | 20.7 | 14.7 | 10.7 | 
          
      | Minimum Temperature | °C | -1.0 | -0.6 | 2.9 | 8.1 | 13.7 | 18.9 | 21.8 | 20.8 | 18.2 | 11.7 | 5.4 | 1.7 | 
      
      
          
      | Heating Degree Days | °C | 439.2 | 375.7 | 306.3 | 141.6 | 24.4 | -15.4 | -17.8 | -17.6 | -14.7 | 75.1 | 230.7 | 357.7 | 
          
      | Cooling Degree Days | °C | -17.8 | -17.8 | -17.3 | -7.6 | 33.9 | 144.5 | 231.8 | 195.1 | 104.3 | 8.1 | -17.5 | -17.8 | 
          
      | Precipitation | M | 7.8 | 8.8 | 9.0 | 9.6 | 9.6 | 11.7 | 11.3 | 12.9 | 11.3 | 13.0 | 8.5 | 11.2 |