Portsmouth Rhode Island Weather Almanac
Saturday, May 16, 2020
Cloudy, Rain and Fog Morning then Partly Cloudy and Warm
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    May 16, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   74   68   65   +9   81   in 1951   48   in 1958    
Minimum Temperature   48   46   48   +0   59   in 2014   36   in 1936    
Average Temperature   61   57   56   +5   68   in 1896   46   in 1936    
Precipitation   .20   .02   .11   +.09   1.52   in 1983              
One Hour   .13   .02           .81   in 2012              
Snow   0.0   0.0   0.0   +0.0   0.0   in                
Snow Depth   0   0               in              
HDD   4   8   9   -5   19   in 1936   0   in 1960    
CDD   0   0   0   +0   3   in 1896              
Maximum Dew Point   60   53   52   +8   65   in 1972   35   in 2016    
Minimum Dew Point   45   44   40   +5   58   in 2014   21   in 1987    
Average  Dew Point   53   49   46   +7   59   in 2014   30   in 1959    
Maximum Humidity   96%   94%   91%   +5%   100%   in 2009   61%   in 1960    
Minimum Humidity   44%   56%   55%   -11%   94%   in 1961   21%   in 1987    
Average Humidity   70%   75%   73%   -3%   97%   in 1961   44%   in 1987    
Maximum Barometer   30.27   29.89   30.07   +00.20   30.61   in 1992   29.67   in 1954    
Minimum Barometer   29.79   29.78   29.82   -00.03   30.36   in 2003   29.48   in 2006    
Average Barometer   30.03   29.84   29.95   +00.08   30.41   in 2003   29.60   in 1997    
Average Wind   9.1   5.0   6.8   +2.3   15.8   in 1985   2.2   in 1975    
Direction   N   S   S       SSW         SSE          
High Wind Gust   23   17   23   -0   48   in 1929   12   in 1975    
Direction   N   SSE   S       W         NNE          
High Heat Index                   81   in 1951              
Wind Chill                             34   in 2016    
Maximum Water Temp   50.0   51.8   55.1   -5.1   60.6   in 2007   50.0   in 2020    
Minimum Water Temp   45.0   48.2   51.6   -6.6   55.5   in 2012   45.0   in 2020    
Average Water Temp   47.5   50.0   53.4   -5.9   57.1   in 2007   47.5   in 2020    
Sunrise/ AM Twilight   5:23:43 AM   4:51:57 AM            
Sunset / PM Twilight   7:59:36 PM   8:31:22 PM            
Length Of Day   14:35:53                          
Special Conditions   Fog                                  
Comments      
    May 16, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   62.3   59.2   62.4   -0.2   70.2   in 1993   52.8   in 1917  
Avg Minimum Temperature   43.4   44.5   46.0   -2.6   50.2   in 1930   40.2   in 1967  
Average Temperature   53.1   51.8   54.1   -0.9   60.2   in 1930   46.8   in 1917  
Total Precipitation   2.15   3.21   1.94   +.21   6.51   in 2006   .02   in 2015  
Total Snow   0.0   0.0   T   +0.0   1.7   in 1977   0.0   in    
Total HDD   190   206   174   +16   292   in 1917   84   in 1993  
Total CDD   0   0   0   +0   27   in 2001   0   in    
Avg Maximum Dew Point   47.4   50.2   49.5   -2.1   56.3   in 2004   40.3   in 1966  
Avg Minimum Dew Point   32.7   40.6   37.1   -4.4   45.7   in 1998   27.6   in 1966  
Average  Dew Point   40.3   45.4   43.3   -3.0   50.2   in 1998   33.9   in 1966  
    May 16, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   18.35   20.87   18.98   -.63   33.65   in 1983   10.59   in 1927  
Total Snow (since Jul 1 19)   12.9   21.1   31.8   -18.9   84.1   in 1996   5.0   in 1998  
Total HDD (since Jul 1 19)   5011   5416   5508   -497   6409   in 1905   4441   in 2012  
Total CDD (since Jan 1)   0   0   0   +0.0   27   in 2001   0   in 2020  
                             
Hour-by-Hour Weather For May 16, 2020  
Climate Weather for May 16  
Weather History For May 16  
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