Portsmouth Rhode Island Weather Almanac  
Friday, July 5, 2024  
Cloudy, Mid-Day Light Rain and Fog, Warmer and Muggy  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    July 5, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   77   84   79   -2   95   in 1999   62   in 1933  
Minimum Temperature   70   68   64   +6   78   in 1999   50   in 1979  
Average Temperature   74   76   72   +2   87   in 1999   57   in 1933  
 Month Avg Max Temperature   78.6   81.6   78.8   -0.2   89.6   in 1955   69.2   in 1914  
Month Avg Min Temperature   63.4   66.4   63.4   +0.0   70.0   in 2013   53.6   in 1962  
Month Average Temperature   71.2   74.2   71.4   -0.2   78.2   in 2018   62.2   in 1914  
High Heat Index   80   94   79   +1   107   in 1999            
Low Wind Chill                             45   in 1979  
Heating Degree Days   0   0   0   +0   8   in 1933   0   in 2024  
Month Heating DD   0   0   3   -3   16   in 1933   0   in 2024  
Season Heating DD   0   0   3   -3   16   in 1933   0   in 2024    
Cooling Degree Days   9   11   7   +2   22   in 1999   0   in 2021    
Month Cooling DD   31   46   32   -1   66   in 2018   1   in 1914    
Year Cooling DD   169   122   125   +44   209   in 1957   31   in 1972    
Maximum Dew Point   74   77   68   +6   77   in 2023   50   in 1962    
Minimum Dew Point   69   67   59   +10   73   in 1999   41   in 1979    
Average  Dew Point   72   72   63   +9   75   in 1999   48   in 1982  
 Month Avg Max Dew Point   67.4   74.8   67.4   +0.0   75.0   in 2018   50.8   in 1982  
Month Avg Min Dew Point   59.8   65.6   58.8   +1.0   68.2   in 2013   42.2   in 1982  
Month Average Dew Point   63.6   70.2   63.0   +0.6   71.0   in 2018   46.5   in 1982  
Precipitation   .06   .00   .11   -.05   1.43   in 1956            
One Hour Rain   .06   .00           .36   in 2016            
Half Hour Rain   .04   .00           .24   in 2016            
Hourly Rain Rate   .35   .00           9.00   in 2004            
Month Precipitation   .07   1.60   .55   -.48   3.03   in 2014   .00   in 2019  
Year Precipitation   34.02   26.08   23.25   +10.77   40.73   in 1998   12.92   in 1957  
Snow   0.0   0.0   0.0   +0.0   0.0   in 1900            
Snow Depth   0   0   0   +0   0   in              
Month Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in Many  
Season Snow                                      
    July 5, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   99%   99%   93%   +6%   100%   in 2018   75%   in 1960  
Minimum Humidity   89%   75%   60%   +29%   91%   in 2008   35%   in 2014  
Average Humidity   94%   87%   76%   +18%   95%   in 1981   58%   in 1960  
Maximum Barometer   29.90   29.98   30.01   -00.11   30.42   in 1988   29.58   in 1951  
Minimum Barometer   29.84   29.93   29.82   +00.02   30.20   in 1995   29.43   in 1990  
Average Barometer   29.87   29.96   29.92   -00.05   30.26   in 1988   29.51   in 1951  
Average Wind   7.8   4.3   5.9   +1.9   15.5   in 1984   1.3   in 1989  
Direction   S   SSW   SSW       SW         SSE        
High Wind Gust   21   13   21   -0   37   in 1955   13   in 2023  
Direction   S   SW   SSW       N         SW        
Maximum Water Temp   68.5   71.6   69.9   -1.4   76.1   in 2013   65.1   in 2020  
Minimum Water Temp   66.6   68.2   65.6   +1.0   70.4   in 2013   62.0   in 2004  
Average Water Temp   67.6   69.9   67.8   -0.2   73.3   in 2013   63.8   in 2020  
Sunrise/ AM Twilight   5:17:23 AM   4:44:41 AM            
Sunset / PM Twilight   8:21:56 PM   8:55:26 PM            
Length Of Day   15:05:14                          
Special Conditions   Light Fog                              
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