Portsmouth Rhode Island Weather Almanac
Thursday, May 28, 2020
Cloudy, Dense Fog Early, Warm and Muggy
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    May 28, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   73   64   69   +4   88   in 1991   53   in 1917    
Minimum Temperature   60   53   51   +9   62   in 1991   41   in 1994    
Average Temperature   67   59   60   +7   75   in 1991   49   in 1907    
Precipitation   .11   .19   .11   .00   2.48   in 1917              
One Hour   .10   .07           .42   in 1959              
Snow   0.0   0.0   0.0   +0.0   0.0   in                
Snow Depth   0   0               in              
HDD   0   6   5   -5   16   in 1907   0   in 2016    
CDD   2   0   1   +1   10   in 1991              
Maximum Dew Point   67   58   56   +11   69   in 2012   42   in 1964    
Minimum Dew Point   59   43   46   +13   61   in 2012   29   in 1980    
Average  Dew Point   63   51   51   +12   65   in 2012   37   in 1964    
Maximum Humidity   97%   96%   90%   +7%   100%   in 2011   58%   in 1952    
Minimum Humidity   76%   48%   54%   +22%   93%   in 2004   23%   in 1980    
Average Humidity   87%   72%   72%   +14%   97%   in 2004   45%   in 1952    
Maximum Barometer   30.25   30.01   30.07   +00.18   30.56   in 1997   29.68   in 1951    
Minimum Barometer   30.12   29.69   29.84   +00.28   30.26   in 1995   29.43   in 1986    
Average Barometer   30.19   29.85   29.95   +00.23   30.37   in 1997   29.60   in 1977    
Average Wind   7.9   8.4   6.0   +1.9   11.5   in 1954   1.7   in 1967    
Direction   SSW   SE   S       SW         N          
High Wind Gust   22   22   21   +1   36   in 1954   11   in 1950    
Direction   SSW   E   S       SW         S          
High Heat Index                   92   in 1991              
Wind Chill                             38   in 1994    
Maximum Water Temp   54.3   57.9   59.2   -4.9   67.1   in 2007   54.3   in 2020    
Minimum Water Temp   50.7   52.5   55.3   -4.6   62.6   in 2007   50.1   in 2008    
Average Water Temp   52.5   55.2   57.3   -4.8   64.9   in 2007   52.5   in 2020    
Sunrise/ AM Twilight   5:15:01 AM   4:42:05 AM            
Sunset / PM Twilight   8:10:24 PM   8:43:20 PM            
Length Of Day   14:55:23                          
Special Conditions   Dense Fog                              
Comments      
    May 28, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   64.7   63.6   64.3   +0.4   70.7   in 1991   57.1   in 2005  
Avg Minimum Temperature   46.0   47.9   47.5   -1.5   52.0   in 2012   41.6   in 1967  
Average Temperature   55.6   55.7   55.9   -0.2   59.8   in 1991   50.3   in 1967  
Total Precipitation   2.79   3.46   3.26   -.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   260   256   +9   413   in 1967   157   in 1918  
Total CDD   3   8   6   -3   32   in 1991   0   in 2013  
Avg Maximum Dew Point   51.3   53.4   51.4   -0.1   57.6   in 2004   42.2   in 1967  
Avg Minimum Dew Point   38.1   42.5   39.8   -1.7   48.0   in 2012   31.1   in 1967  
Average  Dew Point   44.9   48.0   45.6   -0.7   52.7   in 2012   36.6   in 1967  
    May 28, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   18.99   21.12   20.30   -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   5470   5590   -504   6518   in 1905   4475   in 2012  
Total CDD (since Jan 1)   3   8   6   -3.0   32   in 1991   0   in 2013  
                             
Hour-by-Hour Weather For May 28, 2020  
Climate Weather for May 28  
Weather History For May 28  
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