Arlington, Washington
  ID: USC00450257  Latitude:  48.2006  Longitude: -122.1281
  Elevation: 100.1 feet (  30.5 meters)
  Source: NOAA Climate Normals 1991-2020
  
  
      
  
  
   
  
      
  
  
    Precipitation Total: 48.99 in., 19.29 cm.
   
  
      
  
  
   
  
      
  Monthly Data Table for Arlington, Washington
  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 | 47.2 | 49.5 | 53.9 | 59.4 | 67.6 | 71.4 | 77.8 | 78.2 | 72.0 | 60.6 | 52.3 | 45.5 | 
          
      | Minimum Temperature | °F | 28.7 | 28.0 | 31.1 | 34.9 | 40.9 | 45.4 | 47.9 | 47.4 | 42.9 | 36.9 | 31.3 | 27.6 | 
      
      
          
      | Heating Degree Days | °F | 838.6 | 734.9 | 697.5 | 535.5 | 333.7 | 205.7 | 92.7 | 92.3 | 230.2 | 503.7 | 696.0 | 881.8 | 
          
      | Cooling Degree Days | °F | 0.0 | 0.0 | 0.0 | 0.1 | 0.4 | 7.8 | 26.0 | 24.0 | 3.6 | 0.0 | 0.0 | 0.0 | 
          
      | Precipitation | I | 6.5 | 5.0 | 5.7 | 4.7 | 3.3 | 2.5 | 0.8 | 1.1 | 2.9 | 5.3 | 7.8 | 6.1 | 
  
   
  
  
  
  
    Metric Units
    
      | Statistic | Units | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 
          
      | Maximum Temperature | °C | 8.4 | 9.7 | 12.2 | 15.2 | 19.8 | 21.9 | 25.4 | 25.7 | 22.2 | 15.9 | 11.3 | 7.5 | 
          
      | Minimum Temperature | °C | -1.8 | -2.2 | -0.5 | 1.6 | 4.9 | 7.4 | 8.8 | 8.6 | 6.1 | 2.7 | -0.4 | -2.4 | 
      
      
          
      | Heating Degree Days | °C | 448.1 | 390.5 | 369.7 | 279.7 | 167.6 | 96.5 | 33.7 | 33.5 | 110.1 | 262.1 | 368.9 | 472.1 | 
          
      | Cooling Degree Days | °C | -17.8 | -17.8 | -17.8 | -17.7 | -17.6 | -13.4 | -3.3 | -4.4 | -15.8 | -17.8 | -17.8 | -17.8 | 
          
      | Precipitation | M | 16.5 | 12.8 | 14.6 | 11.8 | 8.5 | 6.5 | 2.2 | 2.7 | 7.2 | 13.6 | 19.7 | 15.5 |