Sam Rayburn Dam, Texas
  ID: USC00417936  Latitude:  31.0619  Longitude:  -94.1011
  Elevation: 189 feet (  57.6 meters)
  Source: NOAA Climate Normals 1991-2020
  
  
      
  
  
   
  
      
  
  
    Precipitation Total: 60.03 in., 23.63 cm.
   
  
      
  
  
   
  
      
  Monthly Data Table for Sam Rayburn Dam, Texas
  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 | 
    60.5 | 
    63.9 | 
    71.2 | 
    77.7 | 
    84.1 | 
    90.5 | 
    92.6 | 
    93.5 | 
    88.2 | 
    80.8 | 
    69.4 | 
    61.8 | 
    
          
      | Minimum Temperature | 
      °F | 
    39.7 | 
    43.7 | 
    50.9 | 
    57.1 | 
    64.5 | 
    71.8 | 
    73.6 | 
    73.9 | 
    69.2 | 
    57.3 | 
    49.0 | 
    42.9 | 
    
      
      
          
      | Heating Degree Days | 
      °F | 
    471.2 | 
    333.5 | 
    184.5 | 
    52.3 | 
    5.8 | 
    0.0 | 
    0.0 | 
    0.0 | 
    0.4 | 
    39.6 | 
    210.5 | 
    404.4 | 
    
          
      | Cooling Degree Days | 
      °F | 
    9.7 | 
    20.0 | 
    62.0 | 
    124.3 | 
    294.1 | 
    484.3 | 
    561.1 | 
    579.4 | 
    411.2 | 
    165.2 | 
    36.6 | 
    12.4 | 
    
          
      | Precipitation | 
      I | 
    5.1 | 
    4.4 | 
    5.5 | 
    4.7 | 
    5.0 | 
    4.5 | 
    4.9 | 
    4.6 | 
    4.2 | 
    5.7 | 
    3.9 | 
    5.4 | 
    
  
   
  
  
  
  
    Metric Units
    
      | Statistic | 
      Units | 
          Jan | 
    Feb | 
    Mar | 
    Apr | 
    May | 
    Jun | 
    Jul | 
    Aug | 
    Sep | 
    Oct | 
    Nov | 
    Dec | 
    
          
      | Maximum Temperature | 
      °C | 
    15.8 | 
    17.7 | 
    21.8 | 
    25.4 | 
    28.9 | 
    32.5 | 
    33.7 | 
    34.2 | 
    31.2 | 
    27.1 | 
    20.8 | 
    16.6 | 
    
          
      | Minimum Temperature | 
      °C | 
    4.3 | 
    6.5 | 
    10.5 | 
    13.9 | 
    18.1 | 
    22.1 | 
    23.1 | 
    23.3 | 
    20.7 | 
    14.1 | 
    9.4 | 
    6.1 | 
    
      
      
          
      | Heating Degree Days | 
      °C | 
    244.0 | 
    167.5 | 
    84.7 | 
    11.3 | 
    -14.6 | 
    -17.8 | 
    -17.8 | 
    -17.8 | 
    -17.6 | 
    4.2 | 
    99.2 | 
    206.9 | 
    
          
      | Cooling Degree Days | 
      °C | 
    -12.4 | 
    -6.7 | 
    16.7 | 
    51.3 | 
    145.6 | 
    251.3 | 
    293.9 | 
    304.1 | 
    210.7 | 
    74.0 | 
    2.6 | 
    -10.9 | 
    
          
      | Precipitation | 
      M | 
    13.0 | 
    11.3 | 
    13.9 | 
    12.0 | 
    12.7 | 
    11.3 | 
    12.4 | 
    11.7 | 
    10.7 | 
    14.4 | 
    9.9 | 
    13.7 |