Portsmouth Rhode Island Weather Almanac
Wednesday, May 27, 2020
Cloudy, Dense Fog Early, Partly Cloudy Day to Mostly Cloudy, Dense Fog PM, Warm and Muggy
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    May 27, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   72   80   68   +4   84   in 1933   54   in 1983    
Minimum Temperature   55   59   51   +4   64   in 1914   35   in 1972    
Average Temperature   64   70   60   +4   74   in 1914   50   in 1974    
Precipitation   .00   .00   .11   -.11   1.43   in 1901              
One Hour   .00   .00           .55   in 1951              
Snow   0.0   0.0   0.0   +0.0   0.0   in                
Snow Depth   0   0               in              
HDD   1   0   5   -4   15   in 1974   0   in 2014    
CDD   0   5   1   -1   9   in 1914              
Maximum Dew Point   64   61   56   +8   69   in 2011   38   in 1968    
Minimum Dew Point   54   53   46   +8   61   in 2012   26   in 1969    
Average  Dew Point   59   57   51   +8   64   in 2012   33   in 1969    
Maximum Humidity   97%   85%   90%   +7%   100%   in 2011   54%   in 1954    
Minimum Humidity   70%   41%   53%   +17%   85%   in 1974   25%   in 1980    
Average Humidity   84%   63%   72%   +12%   92%   in 2002   42%   in 1954    
Maximum Barometer   30.26   29.96   30.05   +00.21   30.52   in 1987   29.65   in 1961    
Minimum Barometer   30.21   29.82   29.83   +00.38   30.22   in 1972   29.44   in 1961    
Average Barometer   30.24   29.89   29.94   +00.29   30.35   in 1972   29.55   in 1961    
Average Wind   6.2   8.3   6.1   +0.1   16.7   in 1956   1.4   in 2006    
Direction   S   N   SSW       SSW         S          
High Wind Gust   17   20   22   -5   53   in 1956   13   in 2017    
Direction   S   N   SSW       SSW         SW          
High Heat Index                   88   in 1914              
Wind Chill                             35   in 1972    
Maximum Water Temp   55.2   58.8   58.8   -3.6   68.0   in 2007   52.7   in 2005    
Minimum Water Temp   50.5   52.3   55.1   -4.6   59.2   in 2012   50.0   in 2005    
Average Water Temp   52.9   55.6   57.0   -4.1   63.3   in 2007   51.4   in 2005    
Sunrise/ AM Twilight   5:15:34 AM   4:42:43 AM            
Sunset / PM Twilight   8:09:35 PM   8:42:26 PM            
Length Of Day   14:54:01                          
Special Conditions   None                                  
Comments      
    May 27, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   64.4   63.6   64.1   +0.3   70.1   in 1991   56.6   in 2005  
Avg Minimum Temperature   45.4   47.7   47.4   -1.9   51.6   in 2012   41.6   in 1967  
Average Temperature   55.2   55.6   55.7   -0.5   59.4   in 2010   50.1   in 1967  
Total Precipitation   2.68   3.27   3.15   -.47   8.33   in 1967   .35   in 2015  
Total Snow   0.0   0.0   T   +0.0   1.7   in 1977   0.0   in    
Total HDD   265   254   251   +14   402   in 1967   154   in 1993  
Total CDD   1   8   5   -4   27   in 2001   0   in 2013  
Avg Maximum Dew Point   50.7   53.3   51.3   -0.5   57.4   in 2004   42.0   in 1967  
Avg Minimum Dew Point   37.3   42.5   39.6   -2.3   47.6   in 2012   31.0   in 1967  
Average  Dew Point   44.3   47.9   45.4   -1.2   52.3   in 2012   36.5   in 1967  
    May 27, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   18.88   20.93   20.19   -1.31   35.09   in 1983   11.43   in 1905  
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)   5086   5464   5585   -499   6518   in 1905   4475   in 2012  
Total CDD (since Jan 1)   1   8   5   -4   27   in 2001   0   in 2013  
                             
Hour-by-Hour Weather For May 27, 2020  
Climate Weather for May 27  
Weather History For May 27  
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