Portsmouth Rhode Island Weather Almanac  
Saturday, July 5, 2025  
Clear Morning then Partly Cloudy, Seasonal Temperatures  
  Climate Normal Period Climate Record Period
    1991 - 2020 1893 - 2025
  July 5           Record   Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest   Lowest  
Maximum Temperature   82   77   79   +3   95   in 1999   62   in 1933  
Minimum Temperature   60   70   64   -4   78   in 1999   50   in 1979  
Average Temperature   71   74   72   -1   87   in 1999   57   in 1933  
 Month Avg Max Temperature   82.2   78.6   78.8   +3.4   89.6   in 1955   69.2   in 1914  
Month Avg Min Temperature   64.4   63.4   63.4   +1.0   70.0   in 2013   53.6   in 1962  
Month Average Temperature   73.6   71.2   71.4   +2.2   78.2   in 2018   62.2   in 1914  
High Heat Index   83   80           107   in 1999            
Low Wind Chill                             45   in 1979  
Heating Degree Days   0   0   0   +0   8   in 1933   0   in Many  
Month Heating DD   0   0   3   -3   16   in 1933   0   in Many  
Season Heating DD   0   0   3   -3   16   in 1933   0   in Many    
Cooling Degree Days   6   9   7   -1   22   in 1999   0   in 2021    
Month Cooling DD   43   31   32   +11   66   in 2018   1   in 1914    
Year Cooling DD   198   169   125   +73   209   in 1957   31   in 1972    
Maximum Dew Point   69   74   68   +1   77   in 2023   50   in 1962    
Minimum Dew Point   57   69   59   -2   73   in 1999   41   in 1979    
Average  Dew Point   63   72   63   +0   75   in 1999   48   in 1982  
 Month Avg Max Dew Point   71.2   67.4   67.4   +3.8   75.0   in 2018   50.8   in 1982  
Month Avg Min Dew Point   61.8   59.8   58.8   +3.0   68.2   in 2013   42.2   in 1982  
Month Average Dew Point   66.5   63.6   63.0   +3.5   71.0   in 2018   46.5   in 1982  
Precipitation   .00   .06   .11   -.11   1.43   in 1956            
One Hour Rain   .00   .06           .36   in 2016            
Half Hour Rain   .00   .04         .24   in 2016            
Hourly Rain Rate   .00   .35           9.00   in 2004            
Month Precipitation   .31   .07   .55   -.24   3.03   in 2014   .00   in 2019  
Year Precipitation   21.68   34.02   23.25   -1.57   40.73   in 1998   12.92   in 1957  
Snow   0.0   0.0   #N/A   #N/A   0.0   in 1900   0.0   in Many  
Snow Depth   0   0   0       0   in 1900   0   in Many  
Month Snow   0.0   0.0   T       #N/A   in #N/A   0.0   in Many  
Season Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in #N/A  
    July 5           Record Record
Observed Daily Data   2025   2024   Norm   Depart   Highest Lowest
Maximum Humidity   94%   99%   93%   +1%   100%   in 2018   75%   in 1960  
Minimum Humidity   47%   89%   60%   -13%   91%   in 2008   35%   in 2014  
Average Humidity   71%   94%   76%   -6%   95%   in 1981   58%   in 1960  
Maximum Barometer   30.17   29.90   30.01   +00.16   30.42   in 1988   29.58   in 1951  
Minimum Barometer   30.08   29.84   29.83   +00.25   30.20   in 1995   29.43   in 1990  
Average Barometer   30.13   29.87   29.92   +00.21   30.26   in 1988   29.51   in 1951  
Average Wind   5.2   7.8   5.9   -0.7   15.5   in 1984   1.3   in 1989  
Direction   SSW   S   SSW       SW         SSE        
High Wind Gust   22   21   21   +1   37   in 1955   13   in 2023  
Direction   SSW   S   SSW       N         SW        
Maximum Water Temp   73.2   68.5   70.0   +3.2   76.1   in 2013   65.1   in 2020  
Minimum Water Temp   70.5   66.6   65.8   +4.7   70.5   in 2025   62.0   in 2004  
Average Water Temp   71.9   67.6   67.9   +3.9   73.3   in 2013   63.8   in 2020  
Sunrise/ AM Twilight   5:17:14 AM   4:44:41 AM            
Sunset / PM Twilight   8:22:00 PM   8:55:26 PM            
Length Of Day   15:05:14                          
Special Conditions   None                                  
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