Portsmouth Rhode Island Weather Almanac
Sunday, August 4, 2019
Partly Cloudy early, Clear Day to Partly Cloudy With passing Shower PM, Light Winds and Hot
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    August 4, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   87   79   79   +8   92   in 1944   65   in 1903  
Minimum Temperature   69   70   65   +4   73   in 2012   53   in 1966  
Average Temperature   78   75   72   +6   81   in 1926   62   in 1964  
Precipitation   .01   1.48   .12   -.11   1.89   in 1915            
One Hour   .01   1.13           1.13   in 2018            
Snow   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0   0               in            
HDD   0   0   0   +0   3   in 1964   0   in 2019  
CDD   13   10   8   +5   16   in 1926   0   in 1964  
Maximum Dew Point   70   74   69   +1   77   in 2012   50   in 1964  
Minimum Dew Point   63   69   61   +2   72   in 2012   41   in 1953  
Average  Dew Point   67   72   65   +2   75   in 2012   48   in 1964  
Maximum Humidity   95%   100%   94%   +1%   100%   in 2018   72%   in 1956  
Minimum Humidity   44%   84%   61%   -17%   90%   in 2003   29%   in 1953  
Average Humidity   70%   92%   78%   -8%   95%   in 2003   55%   in 1966  
Maximum Barometer   29.95   30.16   30.02   -00.07   30.30   in 1988   29.66   in 1957  
Minimum Barometer   29.85   30.02   29.84   +00.01   30.17   in 1998   29.45   in 1987  
Average Barometer   29.90   30.09   29.93   -00.03   30.21   in 1998   29.61   in 1957  
Average Wind   4.3   6.3   5.8   -1.5   14.0   in 1974   2.3   in 1996  
Direction   SSW   SSW   SSW       SW         SSE        
High Wind Gust   15   22   21   -6   35   in 1974   10   in 1998  
Direction   SSW   SW   SSW       SW         SSE        
High Heat Index   90   83   82   +8   94   in 2012            
Wind Chill                                      
Maximum Water Temp   74.4   74.3   72.8   +1.6   77.0   in 2006   68.9   in 2004  
Minimum Water Temp   71.5   72.5   68.8   +2.7   72.9   in 2009   63.9   in 2001  
Average Water Temp   73.0   73.4   70.8   +2.2   73.7   in 2002   66.8   in 2001  
Sunrise/ AM Twilight   5:43:51 AM   5:13:09 AM            
Sunset / PM Twilight   7:58:42 PM   8:29:24 PM            
Length Of Day   14:14:51                          
Special Conditions   None                                  
Comments      
    August 4, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   85.0   81.5   79.0   +6.0   91.3   in 1975   72.0   in 1964  
Avg Minimum Temperature   66.8   70.8   65.5   +1.3   72.8   in 1979   54.8   in 1953  
Average Temperature   75.9   76.1   72.3   +3.6   81.4   in 1975   63.6   in 1964  
Total Precipitation   .01   1.48   .45   -.44   2.92   in 1915   .00   in 2017  
Total Snow   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD   0   0   0   +0   8   in 1964   0   in 2019  
Total CDD   44   46   32   +12   67   in 1975   1   in 1953  
Avg Maximum Dew Point   69.0   74.5   69.0   -0.0   76.5   in 2006   56.0   in 1964  
Avg Minimum Dew Point   59.0   69.5   61.3   -2.3   70.8   in 1979   45.8   in 1953  
Average  Dew Point   64.0   72.0   65.1   -1.1   72.5   in 1979   51.4   in 1964  
    August 4, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   35.24   26.61   28.13   +7.11   41.55   in 1998   14.69   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)   0   0   0   +0   8   in 1964   0   in 2019  
Total CDD (since Jan 1)   464   374   336   +128   499   in 2010   163   in 1902  
                             
Hour-by-Hour Weather For August 4, 2019  
Climate Weather for August 4  
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