Portsmouth Rhode Island Weather Almanac
Sunday, October 20, 2019
Clear early, Mostly Cloudy Day to Cloudy w/Light Rain PM, Light Winds, Seasonal Temps
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    October 20, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   63   64   60   +3   77   in 1947   43   in 1974  
Minimum Temperature   40   46   44   -4   62   in 1916   29   in 1974  
Average Temperature   52   55   52   +0   69   in 1947   36   in 1974  
Precipitation   .02   .01   .13   -.11   3.31   in 1996            
One Hour   .01   .01           .82   in 2012            
Snow   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0   0           T   in 1972            
HDD   13   10   13   +0   29   in 1974   0   in 1984  
CDD   0   0   0   +0   4   in 1947            
Maximum Dew Point   52   55   50   +2   67   in 2011   21   in 1974  
Minimum Dew Point   39   45   38   +2   54   in 1994   13   in 1952  
Average  Dew Point   46   50   44   +2   59   in 2007   19   in 1974  
Maximum Humidity   96%   90%   90%   +6%   100%   in 2012   61%   in 1974  
Minimum Humidity   59%   62%   54%   +5%   94%   in 1996   21%   in 1990  
Average Humidity   78%   76%   72%   +6%   97%   in 1996   50%   in 1991  
Maximum Barometer   30.11   29.92   30.13   -00.02   30.64   in 1971   29.70   in 1966  
Minimum Barometer   30.03   29.58   29.85   +00.18   30.47   in 1970   29.05   in 1927  
Average Barometer   30.07   29.75   29.99   +00.08   30.55   in 1970   29.49   in 2006  
Average Wind   3.2   8.0   7.0   -3.8   16.2   in 1961   2.6   in 1962  
Direction   S   SW   SW       N         S        
High Wind Gust   15   29   25   -10   46   in 1960   12   in 1953  
Direction   S   SSW   SW       SSW         SW        
High Heat Index                   78   in 1947            
Wind Chill   39                         25   in 1974  
Maximum Water Temp   63.5   57.6   60.4   +3.1   63.5   in 2007   56.7   in 2010  
Minimum Water Temp   58.0   55.9   58.7   -0.7   62.5   in 2016   55.0   in 2009  
Average Water Temp   58.6   56.8   59.6   -1.0   63.0   in 2007   55.9   in 2009  
Sunrise/ AM Twilight   7:03:48 AM   6:35:46 AM            
Sunset / PM Twilight   5:55:59 PM   6:24:02 PM            
Length Of Day   10:52:11                          
Special Conditions   Fog                                  
Comments      
    October 20, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   63.2   65.6   63.5   -0.4   70.8   in 1990   55.3   in 1896  
Avg Minimum Temperature   49.3   51.8   48.0   +1.3   54.8   in 2011   39.5   in 1981  
Average Temperature   56.2   58.7   55.7   +0.5   62.0   in 1990   49.4   in 1981  
Total Precipitation   3.38   3.60   2.49   +.89   8.13   in 2005   .01   in 1963  
Total Snow   0.0   0.0   0.0   +0.0   0.7   in 1979   0.0   in    
Total HDD   178   140   187   -9   308   in 1981   76   in 2011  
Total CDD   8   17   5   +3   48   in 1954   0   in 2015  
Avg Maximum Dew Point   55.7   59.8   53.3   +2.4   60.5   in 2007   44.2   in 1981  
Avg Minimum Dew Point   44.3   46.7   41.8   +2.5   50.7   in 2005   31.5   in 1981  
Average  Dew Point   50.0   53.2   47.5   +2.5   55.4   in 2005   37.8   in 1981  
    October 20, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   42.78   38.93   37.87   +4.91   51.27   in 1998   19.78   in 1957  
Total Snow (since Jul 1 19)   0.0   0.0   0.0   +0.0   0.7   in 1979   0.0   in    
Total HDD (since Jul 1 19)   221   188   276   -55   456   in 1956   118   in 2011  
Total CDD (since Jan 1)   731   775   563   +168   805   in 2016   290   in 1902  
                             
Hour-by-Hour Weather For October 20, 2019
Climate Weather for October 20
Weather History For October 20
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