Portsmouth Rhode Island Weather Almanac
Saturday, May 9, 2020
Cloudy, Rain and Fog early then Partly Cloudy, Very Cold and Record Breaking High Wind
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    May 9, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   47   61   63   -16   83   in 1957   46   in 1912    
Minimum Temperature   35   42   46   -11   55   in 1964   29   in 1956    
Average Temperature   41   52   54   -13   69   in 1957   41   in 2020    
Precipitation   .25   .00   .12   +.13   1.72   in 2012              
One Hour   .12   .00           .38   in 1978              
Snow   0.0   0.0   0.0   +0.0   1.7   in 1977              
Snow Depth   0   0               in              
HDD   24   13   11   +13   24   in 2020   0   in 1979    
CDD   0   0   0   +0   4   in 1957              
Maximum Dew Point   41   42   50   -9   63   in 2000   34   in 1950    
Minimum Dew Point   15   33   37   -22   53   in 2012   8   in 1962    
Average  Dew Point   28   38   43   -15   57   in 2013   25   in 1962    
Maximum Humidity   94%   92%   89%   +5%   100%   in 2018   53%   in 1957    
Minimum Humidity   31%   38%   54%   -23%   94%   in 2012   13%   in 1962    
Average Humidity   63%   65%   72%   -9%   97%   in 1998   36%   in 1957    
Maximum Barometer   29.94   30.39   30.04   -00.10   30.49   in 1986   29.47   in 1967    
Minimum Barometer   29.44   30.31   29.78   -00.34   30.31   in 2019   29.17   in 1967    
Average Barometer   29.69   30.35   29.91   -00.22   30.38   in 1996   29.32   in 1967    
Average Wind   17.0   8.7   8.4   +8.6   17.0   in 2020   2.8   in 1993    
Direction   WNW   SE   SW       WNW         SSW          
High Wind Gust   43   19   26   +17   52   in 1958   13   in 1993    
Direction   WNW   SE   SW       SW         SW          
High Heat Index                   80   in 1957              
Wind Chill   26   39                     25   in 1977    
Maximum Water Temp   44.1   50.9   53.6   -9.5   60.6   in 2007   44.1   in 2020    
Minimum Water Temp   42.3   48.2   50.3   -8.0   54.0   in 2010   42.3   in 2020    
Average Water Temp   43.2   49.6   52.0   -8.8   56.8   in 2007   43.2   in 2020    
Sunrise/ AM Twilight   5:30:45 AM   4:59:43 AM            
Sunset / PM Twilight   7:52:32 PM   8:23:34 PM            
Length Of Day   14:21:47                          
Special Conditions   Fog                                  
Comments   1.7 inches of snow in 1977, Latest for season  
    May 9, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   61.9   59.6   61.4   +0.4   74.0   in 1930   50.1   in 1917  
Avg Minimum Temperature   44.6   44.4   45.1   -0.6   52.4   in 1930   38.2   in 1917  
Average Temperature   53.2   52.0   53.1   +0.1   63.2   in 1930   44.2   in 1917  
Total Precipitation   1.46   1.61   1.14   +.32   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   104   114   106   -2   185   in 1917   26   in 1930  
Total CDD   0   0   0   +0   19   in 2001   0   in    
Avg Maximum Dew Point   47.2   50.8   48.4   -1.2   57.4   in 1998   34.7   in 1952  
Avg Minimum Dew Point   32.4   40.8   35.6   -3.2   49.6   in 1998   23.8   in 1974  
Average  Dew Point   39.8   45.8   42.0   -2.2   53.5   in 1998   31.3   in 1952  
    May 9, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   17.66   19.27   18.18   -.52   31.60   in 1983   9.85   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)   4925   5324   5440   -515   6344   in 1905   4400   in 2012  
Total CDD (since Jan 1)   0   0   0   +0.0   19   in 2001   0   in 2020  
                             
Hour-by-Hour Weather For May 9, 2020  
Climate Weather for May 9  
Weather History For May 9  
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