Portsmouth Rhode Island Weather Almanac
Saturday, August 10, 2019
Partly Cloudy with Seasonal Temperatures
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    August 10, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   81   87   79   +2   92   in 1949   63   in 1962  
Minimum Temperature   63   67   64   -1   75   in 1988   49   in 1964  
Average Temperature   72   77   72   +0   83   in 1896   60   in 2007  
Precipitation   .00   .00   .12   -.12   2.97   in 1991            
One Hour   .00   .00           1.34   in 1954            
Snow   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0   0               in            
HDD   0   0   0   +0   5   in 2007   0   in 2018  
CDD   7   12   7   +0   18   in 1896   0   in 2007  
Maximum Dew Point   61   70   68   -7   75   in 2012   54   in 1964  
Minimum Dew Point   54   61   60   -6   72   in 2012   39   in 1964  
Average  Dew Point   58   66   64   -6   74   in 2012   47   in 1964  
Maximum Humidity   87%   89%   93%   -6%   100%   in 2017   67%   in 1972  
Minimum Humidity   45%   47%   62%   -17%   88%   in 1954   35%   in 1999  
Average Humidity   66%   68%   77%   -11%   93%   in 1954   55%   in 1983  
Maximum Barometer   29.90   29.92   30.01   -00.11   30.38   in 1989   29.67   in 2011  
Minimum Barometer   29.77   29.78   29.81   -00.04   30.19   in 1993   29.30   in 1959  
Average Barometer   29.84   29.85   29.91   -00.08   30.26   in 1993   29.55   in 1959  
Average Wind   7.0   4.2   5.9   +1.1   18.3   in 1976   2.1   in 1989  
Direction   WNW   NW   SSW       SSE         SW        
High Wind Gust   22   15   21   +1   52   in 1976   11   in 1984  
Direction   WNW   SSE   SSW       SSE         S        
High Heat Index   79   91   82   -3   95   in 2009            
Wind Chill                                      
Maximum Water Temp   74.3   75.8   72.4   +1.9   75.8   in 2018   69.4   in 2017  
Minimum Water Temp   71.8   74.0   69.2   +2.6   74.6   in 2012   65.9   in 2017  
Average Water Temp   73.1   74.9   70.8   +2.2   75.1   in 2012   67.7   in 2017  
Sunrise/ AM Twilight   5:49:54 AM   5:19:48 AM            
Sunset / PM Twilight   7:51:04 PM   8:21:10 PM            
Length Of Day   14:01:10                          
Special Conditions   None                                  
Comments      
    August 10, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   82.6   84.5   79.0   +3.6   86.0   in 1980   71.0   in 1903  
Avg Minimum Temperature   65.8   70.4   65.1   +0.7   71.6   in 1988   55.2   in 1964  
Average Temperature   74.2   77.5   72.1   +2.2   78.0   in 1988   63.9   in 1964  
Total Precipitation   .19   1.48   1.17   -.98   6.70   in 1952   .00   in 1998  
Total Snow   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD   0   0   0   +0   18   in 1903   0   in 2019  
Total CDD   94   127   77   +17   133   in 1988   6   in 1964  
Avg Maximum Dew Point   68.7   74.5   68.8   -0.1   74.5   in 2018   57.4   in 1964  
Avg Minimum Dew Point   59.6   67.8   60.6   -1.0   69.3   in 2003   46.7   in 1964  
Average  Dew Point   64.2   71.2   64.7   -0.5   71.4   in 2003   52.1   in 1964  
    August 10, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   35.42   26.61   28.85   +6.57   41.55   in 1998   15.63   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   18   in 1903   0   in 2019  
Total CDD (since Jan 1)   514   455   381   +133   561   in 2010   193   in 1902  
                             
Hour-by-Hour Weather For August 10, 2019  
Climate Weather for August 10  
Weather History For August 10  
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