Altadena, California
  ID: USC00040144  Latitude:  34.1822  Longitude: -118.1383
  Elevation: 1127 feet ( 343.5 meters)
  Source: NOAA Climate Normals 1991-2020
  
  
    
No temperature data for this station.
  
  
      
  
  
    Precipitation Total: 21.37 in., 8.41 cm.
   
  
      
  
  
   
  
      
  Monthly Data Table for Altadena, 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 | 
      
      
      
      
      
      
          
      | Precipitation | I | 4.0 | 3.3 | 2.4 | 1.2 | 0.7 | 0.1 | 0.1 | 0.0 | 0.3 | 0.6 | 1.1 | 3.3 | 
  
   
  
  
  
  
    Metric Units
    
      | Statistic | Units | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | 
      
      
      
      
      
      
          
      | Precipitation | M | 10.3 | 8.4 | 6.1 | 3.1 | 1.7 | 0.1 | 0.2 | 0.1 | 0.7 | 1.4 | 2.9 | 8.5 |