Portsmouth Rhode Island Weather Almanac
Wednesday, July 31, 2019
Clear, Afternoon Haze, Continued Hot and Muggy
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    July 31, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   87   83   79   +8   97   in 1917   63   in 1923  
Minimum Temperature   71   66   66   +5   73   in 1917   51   in 1956  
Average Temperature   79   75   73   +6   85   in 1917   61   in 1923  
Precipitation   .00   .00   .11   -.11   1.38   in 1927            
One Hour   .00   .00           .25   in 1996            
Snow   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0   0               in            
HDD   0   0   0   +0   4   in 1923   0   in 2019  
CDD   14   10   8   +6   20   in 1917   0   in 1996  
Maximum Dew Point   75   70   69   +6   76   in 1994   50   in 1964  
Minimum Dew Point   69   57   61   +9   70   in 2004   42   in 1964  
Average  Dew Point   72   64   65   +7   73   in 2004   46   in 1964  
Maximum Humidity   94%   96%   94%   +0%   100%   in 2015   63%   in 1964  
Minimum Humidity   65%   46%   60%   +5%   89%   in 2009   34%   in 1953  
Average Humidity   80%   71%   77%   +3%   93%   in 2009   50%   in 1964  
Maximum Barometer   30.04   30.14   30.06   -00.02   30.37   in 1968   29.73   in 2008  
Minimum Barometer   30.00   30.09   29.88   +00.12   30.22   in 2003   29.56   in 2008  
Average Barometer   30.02   30.12   29.97   +00.05   30.25   in 2003   29.65   in 2008  
Average Wind   5.4   4.2   5.1   +0.3   10.9   in 1971   1.6   in 1965  
Direction   SSW   SSW   SSW       SSW         S        
High Wind Gust   18   15   19   -1   36   in 1954   9   in 1998  
Direction   #N/A   WSW   SSW       SSW         N        
High Heat Index   97   85   82   +15   97   in 2019            
Wind Chill                                      
Maximum Water Temp   74.2   73.2   71.7   +2.5   75.4   in 2006   66.7   in 1996  
Minimum Water Temp   70.7   70.2   68.4   +2.3   71.5   in 2013   64.5   in 2006  
Average Water Temp   72.5   71.7   70.1   +2.4   73.0   in 2013   65.9   in 1996  
Sunrise/ AM Twilight   5:39:53 AM   5:08:46 AM            
Sunset / PM Twilight   8:03:19 PM   8:34:26 PM            
Length Of Day   14:23:26                          
Special Conditions   Fog, Haze                              
Comments      
    July 31, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   84.2   80.9   79.3   +5.0   84.7   in 1952   74.3   in 1902  
Avg Minimum Temperature   66.2   64.9   63.8   +2.4   69.6   in 2013   59.5   in 1962  
Average Temperature   75.2   72.9   71.6   +3.6   75.7   in 2013   67.4   in 1914  
Total Precipitation   6.17   .74   3.38   +2.79   9.05   in 2009   .36   in 1952  
Total Snow   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD   0   0   3   -3   34   in 1914   0   in 2019  
Total CDD   325   251   215   +110   339   in 2013   108   in 1902  
Avg Maximum Dew Point   70.6   69.7   67.5   +3.1   73.5   in 1994   61.8   in 1965  
Avg Minimum Dew Point   62.4   60.5   58.9   +3.5   66.7   in 2013   51.8   in 1965  
Average  Dew Point   66.5   65.1   63.2   +3.3   69.8   in 2013   56.8   in 1965  
    July 31, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   35.23   25.13   27.68   +7.55   41.55   in 1998   14.33   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   3   -3   34   in 1914   0   in 2019  
Total CDD (since Jan 1)   420   328   304   +116   472   in 2010   133   in 1902  
                             
Hour-by-Hour Weather For July 31, 2019  
Climate Weather for July 31  
Weather History For July 31  
Weather Calendar  
Back To Weather Stat Page  
Home