Portsmouth Rhode Island Weather Almanac
Thursday, May 9, 2019
Clear early, Partly Cloudy day to Cloudy PM and Cooler
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    May 9, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   61   64   63   -2   83   in 1957   46   in 1912  
Minimum Temperature   42   44   46   -4   55   in 1964   29   in 1956  
Average Temperature   52   54   54   -2   69   in 1957   42   in 1977  
Precipitation   .00   .00   .12   -.12   1.72   in 2012            
One Hour   .00   .00           .38   in 1978            
Snow   0.0   0.0   0.0   +0.0   1.7   in 1977            
Snow Depth   0   0               in            
HDD   13   11   11   +2   23   in 1977   0   in 1979  
CDD   0   0   0   +0   4   in 1957            
Maximum Dew Point   42   55   50   -8   63   in 2000   34   in 1950  
Minimum Dew Point   33   44   37   -4   53   in 2012   8   in 1962  
Average  Dew Point   38   50   43   -5   57   in 2013   25   in 1962  
Maximum Humidity   92%   100%   89%   +3%   100%   in 2018   53%   in 1957  
Minimum Humidity   38%   68%   54%   -16%   94%   in 2012   13%   in 1962  
Average Humidity   65%   84%   72%   -7%   97%   in 1998   36%   in 1957  
Maximum Barometer   30.39   30.22   30.04   +00.35   30.49   in 1986   29.47   in 1967  
Minimum Barometer   30.31   30.09   29.78   +00.53   30.31   in 2019   29.17   in 1967  
Average Barometer   30.35   30.16   29.91   +00.44   30.38   in 1996   29.32   in 1967  
Average Wind   8.7   4.0   8.4   +0.3   16.4   in 2006   2.8   in 1993  
Direction   SE   SSE   SW       N         SSW        
High Wind Gust   19   15   26   -7   52   in 1958   13   in 1993  
Direction   SE   SSE   SW       SW         SW        
High Heat Index                   80   in 1957            
Wind Chill                             25   in 1977  
Maximum Water Temp   50.9   55.9   53.6   -2.7   60.6   in 2007   49.7   in 2005  
Minimum Water Temp   48.2   50.2   50.3   -2.1   54.0   in 2010   46.6   in 2015  
Average Water Temp   49.6   53.1   52.0   -2.4   56.8   in 2007   48.5   in 2005  
Sunrise/ AM Twilight   5:31:36 AM   5:00:38 AM            
Sunset / PM Twilight   7:51:45 PM   8:22:42 PM            
Length Of Day   14:20:09                          
Special Conditions   None                                  
Comments      
    May 9, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   59.6   67.0   61.4   -1.9   74.0   in 1930   50.1   in 1917  
Avg Minimum Temperature   44.4   49.2   45.1   -0.7   52.4   in 1930   38.2   in 1917  
Average Temperature   52.0   58.1   53.1   -1.1   63.2   in 1930   44.2   in 1917  
Total Precipitation   1.61   .20   1.14   +.47   3.92   in 1954   .00   in 2015  
Total Snow   0.0   0.0   T   +0.0   1.7   in 1977   0.0   in    
Total HDD   114   59   106   +8   185   in 1917   26   in 1930  
Total CDD   0   0   0   +0   19   in 2001   0   in 2019  
Avg Maximum Dew Point   50.8   53.8   48.4   +2.4   57.4   in 1998   34.7   in 1952  
Avg Minimum Dew Point   40.8   43.2   35.6   +5.1   49.6   in 1998   23.8   in 1974  
Average  Dew Point   45.8   48.5   42.0   +3.8   53.5   in 1998   31.3   in 1952  
    May 9, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   19.27   21.01   18.05   +1.22   31.60   in 1983   9.85   in 1927  
Total Snow (since Jul 1 18)   21.1   45.6   31.8   -10.7   84.1   in 1996   5.0   in 1998  
Total HDD (since Jul 1 18)   5324   5160   5409   -85   6344   in 1905   4400   in 2012  
Total CDD (since Jan 1)   0   0   0   +0   19   in 2001   0   in 2019  
                             
Hour-by-Hour Weather For May 9, 2019  
Climate Weather for May 9  
Weather History For May 9  
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