Portsmouth Rhode Island Weather Almanac
Sunday, August 16, 2020
Cloudy, Afternoon Rain and Cooler
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    August 16, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   70   81   79   -9   92   in 1938   59   in 1905  
Minimum Temperature   64   61   64   +0   73   in 2002   52   in 1972  
Average Temperature   67   71   71   -4   83   in 1938   58   in 1905  
Precipitation   .23   .00   .12   +.11   1.32   in 1947            
One Hour   .08   .00           .42   in 1981            
Snow   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0   0           0   in            
HDD   0   0   0   +0   7   in 1905   0   in 2020  
CDD   2   6   6   -4   18   in 1938   0   in 2004  
Maximum Dew Point   66   69   67   -1   78   in 1995   51   in 1972  
Minimum Dew Point   62   59   58   +4   70   in 2002   45   in 1968  
Average  Dew Point   64   64   62   +2   74   in 1995   49   in 1964  
Maximum Humidity   94%   95%   92%   +2%   100%   in 2017   75%   in 1980  
Minimum Humidity   84%   61%   58%   +26%   90%   in 2004   37%   in 1979  
Average Humidity   89%   78%   75%   +14%   94%   in 2004   59%   in 1974  
Maximum Barometer   30.06   30.09   30.06   -00.00   30.33   in 1992   29.81   in 1981  
Minimum Barometer   29.86   30.04   29.87   -00.01   30.13   in 2009   29.38   in 1981  
Average Barometer   29.96   30.07   29.96   -00.00   30.20   in 2004   29.60   in 1981  
Average Wind   5.7   5.2   5.6   +0.1   12.1   in 1980   1.5   in 1975  
Direction   NE   SSE   SSW       NW         WSW        
High Wind Gust   22   18   20   +2   37   in 1951   9   in 1998  
Direction   ENE   SSE   SSW       SSE         SSE        
High Heat Index   71   84   81   -10   94   in 2018            
Wind Chill                             #N/A   in #N/A  
Maximum Water Temp   66.2   73.4   71.7   -5.5   76.1   in 2003   66.2   in 2020  
Minimum Water Temp   65.3   71.4   68.8   -3.5   74.1   in 2018   64.8   in 2006  
Average Water Temp   65.8   72.4   70.3   -4.5   75.0   in 2018   65.8   in 2020  
Sunrise/ AM Twilight   5:56:01 AM   5:26:28 AM            
Sunset / PM Twilight   7:42:42 PM   8:12:14 PM            
Length Of Day   13:46:41                          
Special Conditions   Fog                                  
Comments      
    August 16, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   83.8   81.8   79.0   +4.8   85.2   in 1944   72.4   in 1964  
Avg Minimum Temperature   68.8   64.8   64.7   +4.1   72.1   in 1988   55.6   in 1964  
Average Temperature   76.5   73.6   71.8   +4.7   78.7   in 1988   64.3   in 1964  
Total Precipitation   .78   .66   1.89   -1.11   7.15   in 1946   .07   in 1940  
Total Snow   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD   0   0   0   +0   22   in 1964   0   in 2020  
Total CDD   184   137   118   +66   219   in 1988   11   in 1964  
Avg Maximum Dew Point   72.5   68.1   68.1   +4.4   74.1   in 2018   57.1   in 1964  
Avg Minimum Dew Point   64.6   59.3   60.0   +4.6   68.3   in 2003   46.7   in 1964  
Average  Dew Point   68.5   63.7   64.1   +4.5   71.0   in 2018   51.9   in 1964  
    August 16, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   23.16   35.89   29.70   -6.54   43.87   in 1983   15.70   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   22   in 1964   0   in 2020  
Total CDD (since Jan 1)   648   557   422   +226   648   in 2020   208   in 1902  
                             
Hour-by-Hour Weather For August 16, 2020  
Climate Weather for August 16  
Weather History For August 16  
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