Portsmouth Rhode Island Weather Almanac
Tuesday, August 25, 2020
Partly cloudy and Dense Fog early, Clear Day to Partly Cloudy PM, Hot and Humid
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    August 25, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   91   72   77   +14   91   in 2020   63   in 1945  
Minimum Temperature   71   58   62   +9   71   in 2020   49   in 1940  
Average Temperature   81   65   69   +12   81   in 2020   59   in 1945  
Precipitation   .00   .00   .13   -.13   2.09   in 1958            
One Hour   .00   .00           .47   in 1958            
Snow   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0   0           0   in            
HDD   0   0   0   +0   6   in 1945   0   in 2020  
CDD   16   0   5   +11   16   in 2020   0   in 2019  
Maximum Dew Point   75   63   65   +11   75   in 2020   48   in 1987  
Minimum Dew Point   60   54   57   +4   70   in 1998   40   in 1989  
Average  Dew Point   68   59   61   +8   72   in 1998   45   in 1963  
Maximum Humidity   98%   92%   92%   +6%   100%   in 2004   68%   in 1995  
Minimum Humidity   45%   65%   57%   -12%   90%   in 1958   32%   in 1987  
Average Humidity   72%   79%   75%   -3%   95%   in 1958   52%   in 1995  
Maximum Barometer   29.90   30.30   30.11   -00.21   30.65   in 1991   29.74   in 1982  
Minimum Barometer   29.64   30.25   29.92   -00.28   30.27   in 2004   29.52   in 1988  
Average Barometer   29.77   30.28   30.02   -00.25   30.44   in 1991   29.66   in 1982  
Average Wind   5.4   11.6   5.8   -0.4   13.4   in 1986   1.8   in 2006  
Direction   NW   NNE   SSW       WNW         ESE        
High Wind Gust   25   24   20   +5   38   in 1958   10   in 1967  
Direction   NNW   N   SSW       S         NE        
High Heat Index   97   72   78   +19   97   in 2020            
Wind Chill                             #N/A   in #N/A  
Maximum Water Temp   68.0   73.2   71.3   -3.3   76.6   in 2015   68.0   in 2020  
Minimum Water Temp   64.6   71.4   68.3   -3.7   73.7   in 2015   63.5   in 2003  
Average Water Temp   66.3   72.3   69.8   -3.5   75.2   in 2015   66.3   in 2020  
Sunrise/ AM Twilight   6:05:11 AM   5:36:23 AM            
Sunset / PM Twilight   7:29:02 PM   7:57:50 PM            
Length Of Day   13:23:51                          
Special Conditions   Dense Fog                              
Comments      
    August 25, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   83.7   81.3   78.6   +5.1   83.7   in 2020   73.1   in 1964  
Avg Minimum Temperature   67.5   65.1   63.9   +3.6   68.1   in 2018   56.8   in 1964  
Average Temperature   75.8   73.5   71.3   +4.6   75.9   in 1939   65.2   in 1964  
Total Precipitation   1.40   1.64   3.03   -1.63   11.04   in 1946   .27   in 1993  
Total Snow   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD   0   0   0   +0   26   in 1964   0   in 2020  
Total CDD   271   213   168   +103   273   in 1939   32   in 1964  
Avg Maximum Dew Point   71.5   69.0   67.1   +4.4   72.2   in 2018   59.4   in 1964  
Avg Minimum Dew Point   63.4   60.0   59.1   +4.3   65.2   in 2018   49.1   in 1964  
Average  Dew Point   67.4   64.5   63.1   +4.4   68.7   in 2018   54.2   in 1964  
    August 25, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   23.78   36.87   30.84   -7.06   43.94   in 1983   16.38   in 1957  
Total Snow (since Jul 1 20)   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD (since Jul 1 20)   0   0   3   -3   26   in 1964   0   in 2020  
Total CDD (since Jan 1)   735   633   472   +263   735   in 2020   219   in 1902  
                             
Hour-by-Hour Weather For August 25, 2020  
Climate Weather for August 25  
Weather History For August 25  
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