Portsmouth Rhode Island Weather Almanac  
Saturday, August 24, 2024  
Partly Cloudy early then Clear, Light Winds and Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    August 24, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   81   75   78   +3   89   in 1980   64   in 1945  
Minimum Temperature   60   58   63   -3   71   in 1998   46   in 1957  
Average Temperature   71   67   70   +1   79   in 2021   60   in 1957  
 Month Avg Max Temperature   79.5   78.5   78.9   +0.6   83.7   in 1939   72.9   in 1964  
Month Avg Min Temperature   63.8   63.6   64.1   -0.3   68.5   in 2018   56.6   in 1964  
Month Average Temperature   71.9   71.3   71.5   +0.3   76.0   in 1939   65.1   in 1964  
High Heat Index   83   76   78   +5   95   in 2021            
Low Wind Chill                             46   in 1956  
Heating Degree Days   0   0   0   +0   5   in 1957   0   in 2024  
Month Heating DD   2   0   0   +2   26   in 1964   0   in 2023  
Season Heating DD   2   0   3   -1   34   in 1914   0   in 2023    
Cooling Degree Days   6   2   6   +0   14   in 2021   0   in 2010    
Month Cooling DD   167   152   169   -2   264   in 1939   28   in 1964    
Year Cooling DD   609   536   497   +112   719   in 2020   216   in 1902    
Maximum Dew Point   68   64   67   +1   76   in 2021   43   in 1987    
Minimum Dew Point   58   57   58   +0   70   in 1998   36   in 1959    
Average  Dew Point   63   61   63   +0   73   in 2021   40   in 1987  
 Month Avg Max Dew Point   70.6   68.7   68.4   +2.3   72.4   in 2018   59.2   in 1964  
Month Avg Min Dew Point   61.4   59.1   60.2   +1.2   65.6   in 2018   48.8   in 1964  
Month Average Dew Point   66.0   63.9   64.3   +1.8   69.0   in 2018   54.0   in 1964  
Precipitation   .00   .10   .11   -.11   2.62   in 1927            
One Hour Rain   .00   .08           .78   in 1991            
Half Hour Rain   .00   .06           .20   in 2015            
Hourly Rain Rate   .00   .16           3.11   in 2015            
Month Precipitation   2.22   4.25   2.86   -.64   11.04   in 1946   .16   in 1993  
Year Precipitation   40.49   34.50   28.64   +11.85   43.94   in 1983   15.70   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 24, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   94%   99%   91%   +3%   100%   in 2002   64%   in 2003  
Minimum Humidity   63%   60%   55%   +8%   91%   in 1961   29%   in 1995  
Average Humidity   79%   80%   73%   +5%   96%   in 1961   47%   in 2003  
Maximum Barometer   30.26   30.13   30.11   +00.15   30.47   in 1967   29.79   in 1963  
Minimum Barometer   30.18   30.04   29.90   +00.28   30.28   in 1967   29.45   in 1986  
Average Barometer   30.22   30.09   30.01   +00.21   30.38   in 1967   29.64   in 1986  
Average Wind   3.5   4.0   5.6   -2.1   14.3   in 1986   1.7   in 1961  
Direction   WSW   SSE   N       W         NNE        
High Wind Gust   14   15   20   -6   40   in 1986   10   in 1961  
Direction   S   SSE   SW       WNW         SSE        
Maximum Water Temp   70.9   70.7   71.4   -0.5   74.9   in 2015   67.5   in 2020  
Minimum Water Temp   68.7   69.1   68.4   +0.3   72.9   in 2022   62.7   in 2003  
Average Water Temp   69.8   69.9   69.9   -0.1   73.8   in 2015   65.8   in 2020  
Sunrise/ AM Twilight   6:03:33 AM   5:01:37 AM            
Sunset / PM Twilight   7:30:11 PM   8:41:58 PM            
Length Of Day   13:26:38                          
Special Conditions   None                                  
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