Portsmouth Rhode Island Weather Almanac  
Sunday, July 23, 2023  
Partly Cloudy early then Clear, Light Winds, Continued Warm and Humid  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    July 23, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   84   90   80   +4   95   in 1918   66   in 1904  
Minimum Temperature   66   71   65   +1   73   in 2020   55   in 1992  
Average Temperature   75   81   73   +2   83   in 1918   63   in 1992  
 Month Avg Max Temperature   81.7   81.9   79.7   +2.0   85.4   in 1955   74.5   in 1902  
Month Avg Min Temperature   68.0   65.8   64.4   +3.6   71.0   in 2013   58.8   in 1962  
Month Average Temperature   75.1   74.1   72.4   +2.7   77.3   in 2013   67.5   in 1909  
High Heat Index   90   96           109   in 1918            
Low Wind Chill                                      
Heating Degree Days   0   0   0   +0   2   in 1992   0   in 2023  
Month Heating DD   0   0   3   -3   23   in 1914   0   in 2023  
Season Heating DD   0   0   3   -3   23   in 1914   0   in 2023  
Cooling Degree Days   10   16   7   +3   18   in 1918   0   in 1992  
Month Cooling DD   233   210   171   +62   282   in 2013   66   in 1909  
Year Cooling DD   309   305   264   +45   392   in 2013   102   in 1902  
Maximum Dew Point   71   72   69   +2   76   in 2020   46   in 1977  
Minimum Dew Point   63   66   61   +2   70   in 2020   42   in 1977  
Average  Dew Point   67   69   65   +2   73   in 2020   44   in 1977  
 Month Avg Max Dew Point   74.4   70.0   68.4   +6.0   74.4   in 2023   61.7   in 1965  
Month Avg Min Dew Point   66.7   61.0   60.0   +6.7   68.6   in 2013   51.9   in 1965  
Month Average Dew Point   70.5   65.5   64.2   +6.3   71.4   in 2013   56.8   in 1965  
Precipitation   .00   .00   .10   -.10   2.62   in 1953            
One Hour Rain   .00   .00           1.04   in 1953            
Hourly Rain Rate   .00   .00           5.14   in 2010            
Month Precipitation   5.46   .49   2.28   +3.18   7.34   in 2009   .36   in 1952  
Year Precipitation   29.94   23.39   24.85   +5.09   41.06   in 1998   13.67   in 1957  
Snow                                      
Snow Depth                                      
Month Snow                                      
Season Snow   0.0   0.0   0.0   +0.0   0.0   in 1996   0.0   in 1998  
    July 23, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   96%   96%   92%   +4%   100%   in 2018   65%   in 1977  
Minimum Humidity   51%   51%   60%   -9%   95%   in 1953   30%   in 2005  
Average Humidity   74%   74%   76%   -3%   98%   in 1953   48%   in 1977  
Maximum Barometer   30.06   30.02   30.04   +00.02   30.47   in 1986   29.64   in 1954  
Minimum Barometer   29.82   29.93   29.84   -00.02   30.15   in 1970   29.50   in 1991  
Average Barometer   29.94   29.98   29.94   -00.00   30.22   in 1970   29.58   in 1954  
Average Wind   4.8   5.8   5.8   -1.0   11.6   in 2018   1.9   in 1996  
Direction   NW   SW   SW       SE SSE
High Wind Gust   16   25   21   -5   33   in 1984   12   in 1996  
Direction   SSW   SW   SSW       WSW NNE
Maximum Water Temp   77.0   76.6   71.7   +5.3   77.0   in 2023   66.7   in 1997  
Minimum Water Temp   71.2   73.9   67.7   +3.5   73.9   in 2022   64.9   in 2020  
Average Water Temp   74.1   75.3   69.9   +4.2   75.3   in 2022   65.8   in 1997  
Sunrise/ AM Twilight   5:30:53 AM   5:00:35 AM            
Sunset / PM Twilight   8:11:43 PM   8:42:59 PM            
Length Of Day   14:40:50                          
Special Conditions   None                              
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