Portsmouth Rhode Island Weather Almanac  
Monday, August 5, 2024  
Clear to Partly Cloudy PM, Hot and Muggy  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    August 5, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   86   82   80   +6   94   in 1944   61   in 1903  
Minimum Temperature   69   67   65   +4   75   in 2012   54   in 1972  
Average Temperature   78   75   72   +6   83   in 1944   59   in 1903  
 Month Avg Max Temperature   86.2   78.0   80.0   +6.2   90.2   in 1975   70.8   in 1903  
Month Avg Min Temperature   70.6   61.8   65.0   +5.6   72.4   in 1979   55.0   in 1964  
Month Average Temperature   78.6   70.2   72.0   +6.6   80.8   in 1975   63.8   in 1964  
High Heat Index   93   85   82   +11   109   in 1944            
Low Wind Chill                                      
Heating Degree Days   0   0   0   +0   6   in 1903   0   in 2024  
Month Heating DD   0   0   0   +0   9   in 1964   0   in 2024  
Season Heating DD   0   0   3   -3   34   in 1914   0   in 2024    
Cooling Degree Days   13   10   8   +5   18   in 1944   0   in 2004    
Month Cooling DD   68   26   40   +28   79   in 1975   3   in 1964    
Year Cooling DD   510   410   368   +142   529   in 2020   168   in 1902    
Maximum Dew Point   75   71   69   +6   77   in 2022   54   in 1972    
Minimum Dew Point   68   64   61   +7   73   in 2012   44   in 2013    
Average  Dew Point   72   68   65   +7   75   in 2012   49   in 1972  
 Month Avg Max Dew Point   77.2   65.2   69.0   +8.2   77.2   in 2024   56.8   in 1964  
Month Avg Min Dew Point   69.0   56.2   61.6   +7.4   70.0   in 1979   47.2   in 1964  
Month Average Dew Point   73.1   60.7   65.0   +8.1   73.1   in 2024   52.0   in 1964  
Precipitation   .00   .00   .12   -.12   1.81   in 2021            
One Hour Rain   .00   .00           .44   in 2021            
Half Hour Rain   .00   .00           .29   in 2021            
Hourly Rain Rate   .00   .00           2.65   in 2021            
Month Precipitation   .02   T   .59   -.57   3.61   in 2021   .00   in 2012  
Year Precipitation   38.29   30.25   26.37   +11.92   41.55   in 1998   14.69   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                                      
    August 5, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   98%   97%   94%   +4%   100%   in 2018   78%   in 1973  
Minimum Humidity   66%   65%   61%   +5%   91%   in 2021   33%   in 2013  
Average Humidity   82%   81%   77%   +5%   95%   in 2021   57%   in 2013  
Maximum Barometer   30.01   29.97   30.03   -00.02   30.40   in 1985   29.67   in 1954  
Minimum Barometer   29.92   29.90   29.85   +00.07   30.23   in 1996   29.38   in 1989  
Average Barometer   29.97   29.94   29.94   +00.02   30.27   in 1996   29.58   in 1989  
Average Wind   5.4   3.7   5.9   -0.5   12.4   in 1988   1.7   in 1975  
Direction   SSW   WNW   SSW       SW         SSE        
High Wind Gust   23   14   20   +3   38   in 1981   10   in 1975  
Direction   SSW   SW   SSW       W         SSE        
Maximum Water Temp   74.3   70.9   72.4   +1.9   76.0   in 2006   66.9   in 1997  
Minimum Water Temp   71.1   69.0   68.9   +2.2   72.6   in 2010   64.1   in 2006  
Average Water Temp   72.7   70.0   70.7   +2.0   74.0   in 2012   66.3   in 1997  
Sunrise/ AM Twilight   5:44:11 AM   4:44:41 AM            
Sunset / PM Twilight   7:57:09 PM   8:55:26 PM            
Length Of Day   14:12:58                          
Special Conditions   Fog                                  
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