Portsmouth Rhode Island Weather Almanac
Thursday, August 29, 2019
Cloudy, Rain and Fog early, Partly Cloudy Day to Clear Evening, Much Warmer
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    August 29, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   83   91   77   +6   93   in 1953   63   in 2006  
Minimum Temperature   66   73   61   +5   73   in 2018   46   in 1982  
Average Temperature   75   82   69   +6   83   in 1948   57   in 1986  
Precipitation   .42   .00   .13   +.29   3.97   in 1997            
One Hour   .23   .00           2.44   in 1997            
Snow   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0   0               in            
HDD   0   0   1   -1   8   in 1986   0   in 2019  
CDD   10   17   4   +6   18   in 1948   0   in 2017  
Maximum Dew Point   71   78   64   +7   78   in 2018   44   in 1965  
Minimum Dew Point   58   72   56   +2   72   in 2018   35   in 1982  
Average  Dew Point   65   75   60   +5   75   in 2018   40   in 1965  
Maximum Humidity   96%   95%   93%   +3%   100%   in 2017   70%   in 1965  
Minimum Humidity   52%   59%   60%   -8%   91%   in 1987   35%   in 1982  
Average Humidity   74%   77%   76%   -2%   96%   in 1987   54%   in 1982  
Maximum Barometer   29.96   30.00   30.07   -00.11   30.37   in 1941   29.73   in 1962  
Minimum Barometer   29.75   29.92   29.87   -00.12   30.23   in 2000   29.43   in 1990  
Average Barometer   29.86   29.96   29.97   -00.12   30.27   in 2000   29.65   in 1962  
Average Wind   7.6   5.4   6.2   +1.4   17.3   in 1962   1.3   in 1964  
Direction   NNW   SSW   N       NNE         S        
High Wind Gust   17   21   22   -5   42   in 1962   12   in 2007  
Direction   NNW   SW   N       NNE         SSE        
High Heat Index   85   103   78   +7   103   in 2018            
Wind Chill                                      
Maximum Water Temp   70.7   74.4   70.5   +0.2   74.4   in 2018   66.8   in 2006  
Minimum Water Temp   68.9   72.3   68.2   +0.7   72.3   in 2018   62.9   in 2003  
Average Water Temp   69.8   73.4   69.4   +0.4   73.4   in 2018   65.7   in 2003  
Sunrise/ AM Twilight   6:09:14 AM   5:40:43 AM            
Sunset / PM Twilight   7:22:37 PM   7:51:08 PM            
Length Of Day   13:13:23                          
Special Conditions   Fog                                  
Comments      
    August 29, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   80.6   82.1   78.4   +2.2   83.0   in 2016   73.5   in 1964  
Avg Minimum Temperature   64.2   68.1   63.6   +0.6   68.1   in 2018   56.9   in 1964  
Average Temperature   72.4   75.1   71.0   +1.4   75.1   in 2018   65.2   in 1964  
Total Precipitation   2.60   3.64   3.55   -.95   11.69   in 1946   .33   in 1993  
Total Snow   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD   3   0   4   -1   36   in 1905   0   in 2018  
Total CDD   226   300   186   +40   300   in 2018   43   in 1964  
Avg Maximum Dew Point   68.5   72.3   66.7   +1.8   72.3   in 2018   60.1   in 1964  
Avg Minimum Dew Point   59.2   65.2   58.6   +0.5   65.2   in 2018   49.8   in 1964  
Average  Dew Point   63.8   68.8   62.7   +1.2   68.8   in 2018   54.9   in 1964  
    August 29, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   37.83   28.77   31.23   +6.60   45.24   in 1998   16.49   in 1957  
Total Snow (since Jul 1 19)   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD (since Jul 1 19)   3   0   4   -1   36   in 1905   0   in 2018  
Total CDD (since Jan 1)   646   628   490   +156   664   in 2010   241   in 1902  
                             
Hour-by-Hour Weather For August 29, 2019  
Climate Weather for August 29  
Weather History For August 29  
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