Portsmouth Rhode Island Weather Almanac  
Thursday, May 11, 2023  
Clear and Much Warmer   PASTE VALUES
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    May 11, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   75   63   63   +12   82   in 2001   46   in 1919  
Minimum Temperature   48   46   47   +1   59   in 2015   34   in 1900  
Average Temperature   62   55   55   +7   69   in 2001   44   in 1963  
 Month Avg Max Temperature   63.9   58.7   61.6   +2.3   72.6   in 2001   51.1   in 1917  
Month Avg Min Temperature   46.4   44.7   45.6   +0.7   51.4   in 1930   39.1   in 1917  
Month Average Temperature   55.4   52.1   53.7   +1.6   62.1   in 1930   45.4   in 1917  
High Heat Index                   81   in 1993            
Low Wind Chill                             32   in 1900  
Heating Degree Days   3   10   10   -7   21   in 1963   0   in 2015  
Month HDD   106   142   124   -18   216   in 1917   44   in 1930  
Season HDD   4585   4924   5297   -712   6359   in 1905   4418   in 2012  
Cooling Degree Days   0   0   0   -0   4   in 2001       in    
Month CDD   0   0   0   +0   23   in 2001   0   in 2023  
Year CDD   0   0   0   +0   23   in 2001   0   in 2022  
Maximum Dew Point   53   52   52   +1   65   in 2015   32   in 1966  
Minimum Dew Point   44   35   40   +4   59   in 2015   19   in 1966  
Average  Dew Point   49   44   46   +3   62   in 2015   26   in 1966  
 Month Avg Max Dew Point   50.1   45.5   49.8   +0.3   56.2   in 1998   37.8   in 1952  
Month Avg Min Dew Point   39.0   34.2   38.2   +0.8   48.6   in 1998   26.2   in 1968  
Month Average Dew Point   44.9   40.1   44.0   +0.9   52.4   in 1998   32.7   in 1968  
Precipitation   .00   T   .11   -.11   1.54   in 1989            
One Hour   .00   T           .41   in 1951            
Hourly Rate   .00   .00           2.70   in 2013            
Month Precipitation   .67   .98   1.28   -.61   4.71   in 1989   .00   in 2015  
Year Precipitation   17.90   17.38   17.01   +.89   31.68   in 1983   10.12   in 1927  
Snow   0.0   0.0   0.0   +0.0   0.0   in         in    
Snow Depth   0   0           0   in         in    
Month Snow   0.0   0.0   0.0   +0.0   1.7   in 1977   0.0   in 2023  
Season Snow   9.1   34.7   33.5   -24.4   84.1   in 1996   5.0   in 1998  
    May 11, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   85%   94%   88%   -3%   100%   in 2015   55%   in 1966  
Minimum Humidity   37%   62%   50%   -13%   97%   in 1989   22%   in 2001  
Average Humidity   61%   78%   69%   -8%   99%   in 1989   40%   in 1966  
Maximum Barometer   30.08   30.32   30.06   +00.02   30.43   in 1966   29.62   in 1954  
Minimum Barometer   29.98   30.26   29.83   +00.15   30.30   in 2010   29.41   in 1990  
Average Barometer   30.03   30.29   29.95   +00.08   30.36   in 2010   29.57   in 1954  
Average Wind   5.6   13.6   7.6   -2.0   14.1   in 1986   3.1   in 2007  
Direction   WNW   N   SSW       NNE SSE
High Wind Gust   26   37   25   +1   43   in 1945   14   in 2007  
Direction   SW   N   SSE       NW S
Maximum Water Temp   57.9   52.5   53.9   +4.0   59.5   in 2007   44.4   in 2020  
Minimum Water Temp   54.7   49.8   50.6   +4.1   55.7   in 2013   43.2   in 2020  
Average Water Temp   56.3   51.2   52.3   +4.0   56.5   in 2013   43.8   in 2020  
Sunrise/ AM Twilight   5:30:09 AM   4:57:39 AM            
Sunset / PM Twilight   7:53:22 PM   8:25:34 PM            
Length Of Day   14:23:13                          
Special Conditions   None                              
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