Walla Walla Rgnl Ap, Washington
  ID: USW00024160  Latitude:  46.0947  Longitude: -118.2869
  Elevation: 1166 feet ( 355.4 meters)
  Source: NOAA Climate Normals 1991-2020
  
  
      
  
  
   
  
      
  
  
    Precipitation Total: 18.74 in., 7.38 cm.
   
  
      
  
  
   
  
      
  Monthly Data Table for Walla Walla Rgnl Ap, 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 | 42.6 | 46.5 | 55.4 | 62.6 | 72.6 | 79.7 | 91.2 | 89.2 | 78.7 | 63.5 | 50.1 | 40.8 | 
          
      | Minimum Temperature | °F | 30.6 | 32.5 | 37.4 | 42.2 | 49.7 | 55.8 | 62.9 | 62.2 | 54.4 | 44.1 | 35.7 | 29.1 | 
      
      
          
      | Heating Degree Days | °F | 880.5 | 713.8 | 576.8 | 379.4 | 161.8 | 46.1 | 1.9 | 2.6 | 63.9 | 352.9 | 663.0 | 931.1 | 
          
      | Cooling Degree Days | °F | 0.0 | 0.0 | 0.0 | 1.6 | 42.3 | 129.0 | 374.8 | 334.0 | 110.3 | 5.9 | 0.0 | 0.0 | 
          
      | Precipitation | I | 1.9 | 1.5 | 2.3 | 1.9 | 1.7 | 1.2 | 0.2 | 0.3 | 0.6 | 1.6 | 2.1 | 2.1 | 
  
   
  
  
  
  
    Metric Units
    
      | Statistic | Units | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 
          
      | Maximum Temperature | °C | 5.9 | 8.1 | 13.0 | 17.0 | 22.6 | 26.5 | 32.9 | 31.8 | 25.9 | 17.5 | 10.1 | 4.9 | 
          
      | Minimum Temperature | °C | -0.8 | 0.3 | 3.0 | 5.7 | 9.8 | 13.2 | 17.2 | 16.8 | 12.4 | 6.7 | 2.1 | -1.6 | 
      
      
          
      | Heating Degree Days | °C | 471.4 | 378.8 | 302.7 | 193.0 | 72.1 | 7.8 | -16.7 | -16.3 | 17.7 | 178.3 | 350.6 | 499.5 | 
          
      | Cooling Degree Days | °C | -17.8 | -17.8 | -17.8 | -16.9 | 5.7 | 53.9 | 190.4 | 167.8 | 43.5 | -14.5 | -17.8 | -17.8 | 
          
      | Precipitation | M | 4.7 | 3.9 | 5.8 | 4.9 | 4.4 | 3.1 | 0.5 | 0.7 | 1.6 | 4.2 | 5.2 | 5.4 |