Decorah, Iowa
  ID: USC00132110  Latitude:  43.3042  Longitude:  -91.7953
  Elevation: 859.9 feet ( 262.1 meters)
  Source: NOAA Climate Normals 1991-2020
  
  
      
  
  
   
  
      
  
  
    Precipitation Total: 37.61 in., 14.81 cm.
   
  
      
  
  
   
  
      
  Monthly Data Table for Decorah, Iowa
  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 | 
    28.1 | 
    30.7 | 
    46.3 | 
    60.5 | 
    72.8 | 
    81.4 | 
    84.8 | 
    82.8 | 
    76.7 | 
    62.5 | 
    47.5 | 
    32.9 | 
    
          
      | Minimum Temperature | 
      °F | 
    10.8 | 
    11.5 | 
    26.3 | 
    37.3 | 
    48.8 | 
    59.1 | 
    63.1 | 
    60.9 | 
    53.2 | 
    40.4 | 
    28.7 | 
    17.6 | 
    
      
      
          
      | Heating Degree Days | 
      °F | 
    1411.9 | 
    1228.8 | 
    891.6 | 
    486.4 | 
    186.9 | 
    20.1 | 
    3.3 | 
    8.7 | 
    99.8 | 
    430.2 | 
    807.2 | 
    1232.0 | 
    
          
      | Cooling Degree Days | 
      °F | 
    0.0 | 
    0.0 | 
    1.8 | 
    3.4 | 
    56.5 | 
    177.5 | 
    280.7 | 
    221.0 | 
    98.1 | 
    10.2 | 
    0.2 | 
    0.0 | 
    
          
      | Precipitation | 
      I | 
    1.0 | 
    1.2 | 
    2.1 | 
    4.5 | 
    5.3 | 
    6.9 | 
    3.8 | 
    4.8 | 
    4.1 | 
    3.2 | 
    1.6 | 
    1.9 | 
    
  
   
  
  
  
  
    Metric Units
    
      | Statistic | 
      Units | 
          Jan | 
    Feb | 
    Mar | 
    Apr | 
    May | 
    Jun | 
    Jul | 
    Aug | 
    Sep | 
    Oct | 
    Nov | 
    Dec | 
    
          
      | Maximum Temperature | 
      °C | 
    -2.2 | 
    -0.7 | 
    7.9 | 
    15.8 | 
    22.7 | 
    27.4 | 
    29.3 | 
    28.2 | 
    24.8 | 
    16.9 | 
    8.6 | 
    0.5 | 
    
          
      | Minimum Temperature | 
      °C | 
    -11.8 | 
    -11.4 | 
    -3.2 | 
    2.9 | 
    9.3 | 
    15.1 | 
    17.3 | 
    16.1 | 
    11.8 | 
    4.7 | 
    -1.8 | 
    -8.0 | 
    
      
      
          
      | Heating Degree Days | 
      °C | 
    766.6 | 
    664.9 | 
    477.6 | 
    252.4 | 
    86.1 | 
    -6.6 | 
    -15.9 | 
    -12.9 | 
    37.7 | 
    221.2 | 
    430.7 | 
    666.7 | 
    
          
      | Cooling Degree Days | 
      °C | 
    -17.8 | 
    -17.8 | 
    -16.8 | 
    -15.9 | 
    13.6 | 
    80.8 | 
    138.2 | 
    105.0 | 
    36.7 | 
    -12.1 | 
    -17.7 | 
    -17.8 | 
    
          
      | Precipitation | 
      M | 
    2.4 | 
    3.1 | 
    5.3 | 
    11.4 | 
    13.4 | 
    17.5 | 
    9.7 | 
    12.1 | 
    10.3 | 
    8.1 | 
    4.2 | 
    4.8 |