Portsmouth Rhode Island Weather Almanac
Saturday, September 14, 2019
Clear early then Cloudy, Light Rain Late, Windy and Continued Cool
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    September 14, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   72   74   72   +0   84   in 1916   58   in 1964  
Minimum Temperature   50   62   57   -7   69   in 1947   43   in 1963  
Average Temperature   61   68   65   -4   76   in 1903   52   in 1963  
Precipitation   .03   .00   .13   -.10   2.62   in 1944            
One Hour   .03   .00           .44   in 1956            
Snow   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0   0               in            
HDD   4   0   2   +2   13   in 1963   0   in 2018  
CDD   0   3   2   -2   11   in 1903   0   in 2019  
Maximum Dew Point   66   67   60   +6   74   in 1961   43   in 1975  
Minimum Dew Point   46   61   51   -5   67   in 2005   32   in 1959  
Average  Dew Point   56   64   56   +0   71   in 1961   38   in 1959  
Maximum Humidity   92%   97%   93%   -1%   100%   in 2005   73%   in 1953  
Minimum Humidity   71%   76%   63%   +8%   96%   in 2008   32%   in 1959  
Average Humidity   82%   87%   78%   +3%   97%   in 2008   55%   in 1959  
Maximum Barometer   30.47   30.29   30.12   +00.35   30.54   in 1985   29.63   in 1971  
Minimum Barometer   30.18   30.21   29.89   +00.29   30.29   in 2004   28.38   in 1944  
Average Barometer   30.33   30.25   30.00   +00.32   30.36   in 2004   29.50   in 1971  
Average Wind   10.9   2.5   6.4   +4.5   14.2   in 1979   1.5   in 2006  
Direction   SSE   NNE   SSW       S         SE        
High Wind Gust   25   12   22   +3   88   in 1944   12   in 2018  
Direction   SSE   ENE   SSW       SE         ENE        
High Heat Index   72   76   72   -0   88   in 1984            
Wind Chill                                      
Maximum Water Temp   68.8   70.7   68.9   -0.1   72.0   in 2005   65.5   in 2006  
Minimum Water Temp   67.9   69.0   66.9   +1.0   69.8   in 2011   64.4   in 2006  
Average Water Temp   68.4   69.9   67.9   +0.5   70.5   in 2011   65.0   in 2006  
Sunrise/ AM Twilight   6:25:24 AM   5:57:40 AM            
Sunset / PM Twilight   6:55:38 PM   7:23:21 PM            
Length Of Day   12:30:14                          
Special Conditions   None                                  
Comments      
    September 14, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   74.4   75.9   74.1   +0.3   83.4   in 1983   68.9   in 1917  
Avg Minimum Temperature   57.6   64.1   59.0   -1.4   67.0   in 1961   51.6   in 1893  
Average Temperature   66.0   70.0   66.6   -0.5   75.2   in 1961   61.9   in 1893  
Total Precipitation   .59   2.60   1.82   -1.23   5.17   in 1944   T   in 2005  
Total Snow   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD   16   9   19   -3   57   in 1913   0   in 2015  
Total CDD   33   82   44   -11   145   in 1961   1   in 1893  
Avg Maximum Dew Point   64.6   59.6   62.2   +2.5   70.6   in 1961   54.6   in 1967  
Avg Minimum Dew Point   53.9   48.1   53.2   +0.7   63.9   in 1961   43.6   in 1967  
Average  Dew Point   59.3   54.1   57.7   +1.6   67.3   in 1961   49.1   in 1967  
    September 14, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   38.42   31.44   33.31   +5.11   46.33   in 1998   17.43   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)   19   9   28   -9   94   in 1914   0   in 2015  
Total CDD (since Jan 1)   691   730   542   +149   758   in 2016   280   in 1902  
                             
Hour-by-Hour Weather For September 14, 2019  
Climate Weather for September 14  
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