Portsmouth Rhode Island Weather Almanac  
Tuesday, August 6, 2024  
Mostly Cloudy early then Cloudy and Light Rain, Much Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    August 6, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   76   80   79   -3   95   in 1918   66   in 1936  
Minimum Temperature   65   62   65   +0   74   in 2022   52   in 1972  
Average Temperature   71   71   72   -1   82   in 1918   61   in 1994  
 Month Avg Max Temperature   84.5   78.3   79.8   +4.7   88.5   in 1975   70.3   in 1903  
Month Avg Min Temperature   69.7   61.8   65.0   +4.7   71.7   in 1979   55.5   in 1964  
Month Average Temperature   77.3   70.3   72.0   +5.3   79.8   in 1975   64.3   in 1964  
High Heat Index   79   81   81   -2   111   in 1918            
Low Wind Chill                                      
Heating Degree Days   0   0   0   +0   4   in 1994   0   in 2024  
Month Heating DD   0   0   0   +0   11   in 1903   0   in 2024  
Season Heating DD   0   0   3   -3   34   in 1914   0   in 2024    
Cooling Degree Days   6   6   8   -2   17   in 1918   0   in 2004    
Month Cooling DD   74   32   48   +26   89   in 1975   5   in 1964    
Year Cooling DD   516   416   376   +140   540   in 2020   176   in 1902    
Maximum Dew Point   74   64   69   +5   76   in 2022   52   in 1951    
Minimum Dew Point   63   56   61   +2   72   in 2022   43   in 1957    
Average  Dew Point   69   60   65   +4   74   in 2022   49   in 1951  
 Month Avg Max Dew Point   76.7   65.0   69.0   +7.7   76.7   in 2024   57.2   in 1964  
Month Avg Min Dew Point   68.0   56.2   61.5   +6.5   69.3   in 1988   48.2   in 1964  
Month Average Dew Point   72.3   60.6   65.0   +7.3   72.3   in 2024   52.7   in 1964  
Precipitation   .22   .00   .12   +.10   2.39   in 1952            
One Hour Rain   .09   .00           1.56   in 1952            
Half Hour Rain   .08   .00           .12   in 2007            
Hourly Rain Rate   .74   .00           .81   in 2007            
Month Precipitation   .24   T   .71   -.47   3.98   in 1952   .00   in 1998  
Year Precipitation   38.51   30.25   26.49   +12.02   41.55   in 1998   14.69   in 1957  
Snow   0.0   0.0   0.0   +0.0   0.0   in 1900            
Snow Depth   0   0   0   +0   0   in              
Month Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in Many  
Season Snow                                      
    August 6, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   98%   92%   92%   +6%   100%   in 2003   73%   in 1951  
Minimum Humidity   89%   50%   57%   +32%   92%   in 1952   35%   in 1957  
Average Humidity   94%   71%   75%   +19%   96%   in 1952   55%   in 1957  
Maximum Barometer   30.00   30.01   30.06   -00.06   30.37   in 1992   29.68   in 1954  
Minimum Barometer   29.91   29.96   29.87   +00.04   30.26   in 1996   29.38   in 1989  
Average Barometer   29.96   29.99   29.96   -00.01   30.31   in 1996   29.58   in 1954  
Average Wind   6.1   5.5   5.7   +0.4   12.4   in 2002   2.3   in 1997  
Direction   SW   N   SW       NNW         NNW        
High Wind Gust   19   17   20   -1   31   in 1902   11   in 2019  
Direction   NE   SSW   SW       S         E        
Maximum Water Temp   73.9   71.6   72.3   +1.6   76.1   in 2022   67.0   in 2004  
Minimum Water Temp   68.0   68.5   68.7   -0.7   73.2   in 2022   65.1   in 2001  
Average Water Temp   71.0   70.1   70.5   +0.4   74.7   in 2022   66.3   in 2004  
Sunrise/ AM Twilight   5:45:12 AM   4:45:23 AM            
Sunset / PM Twilight   7:55:54 PM   8:55:02 PM            
Length Of Day   14:10:42                          
Special Conditions   Fog                                  
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