Portsmouth Rhode Island Weather Almanac  
Friday, August 23, 2024  
Clear, Light Winds, Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    August 23, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   80   76   78   +2   88   in 1960   63   in 1937  
Minimum Temperature   57   58   63   -6   73   in 2009   47   in 1957  
Average Temperature   69   67   71   -2   79   in 2009   59   in 1937  
 Month Avg Max Temperature   79.4   78.7   78.9   +0.5   83.7   in 1939   72.7   in 1964  
Month Avg Min Temperature   64.0   63.9   64.2   -0.2   69.0   in 2018   56.4   in 1964  
Month Average Temperature   71.9   71.5   71.6   +0.3   76.0   in 1939   64.9   in 1964  
High Heat Index   81   77   78   +3   92   in 2020            
Low Wind Chill                             47   in 1957  
Heating Degree Days   0   0   0   +0   6   in 1937   0   in 2024  
Month Heating DD   2   0   0   +2   26   in 1964   0   in 2023  
Season Heating DD   2   0   3   -1   34   in 1914   0   in 2023    
Cooling Degree Days   4   2   6   -2   14   in 2009   0   in 2010    
Month Cooling DD   161   150   163   -2   253   in 1939   23   in 1964    
Year Cooling DD   603   534   491   +112   706   in 2020   216   in 1902    
Maximum Dew Point   62   61   67   -5   76   in 2022   53   in 1988    
Minimum Dew Point   54   52   59   -5   70   in 2021   38   in 1987    
Average  Dew Point   58   57   63   -5   73   in 2021   46   in 1957  
 Month Avg Max Dew Point   70.7   68.9   68.4   +2.3   72.8   in 2018   58.9   in 1964  
Month Avg Min Dew Point   61.5   59.2   60.3   +1.3   66.1   in 2003   48.3   in 1964  
Month Average Dew Point   66.1   64.0   64.3   +1.8   69.4   in 2018   53.6   in 1964  
Precipitation   .00   .00   .12   -.12   1.42   in 1946            
One Hour Rain   .00   .00           .51   in 1955            
Half Hour Rain   .00   .00           .25   in 2009            
Hourly Rain Rate   .00   .00           7.02   in 2021            
Month Precipitation   2.22   4.15   2.75   -.53   11.04   in 1946   .16   in 1993  
Year Precipitation   40.49   34.40   28.53   +11.96   43.94   in 1983   15.70   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 23, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   94%   91%   92%   +2%   100%   in 2021   72%   in 1959  
Minimum Humidity   52%   45%   57%   -5%   89%   in 1966   29%   in 1957  
Average Humidity   73%   68%   75%   -2%   95%   in 1966   55%   in 1959  
Maximum Barometer   30.28   30.15   30.08   +00.20   30.54   in 1992   29.75   in 1971  
Minimum Barometer   30.18   30.08   29.89   +00.29   30.23   in 1954   29.47   in 1971  
Average Barometer   30.23   30.12   29.98   +00.25   30.35   in 1954   29.61   in 1971  
Average Wind   4.8   5.9   5.5   -0.7   13.1   in 2010   1.9   in 2006  
Direction   SSW   N   SSW       NE         W        
High Wind Gust   18   16   21   -3   48   in 1930   10   in 2007  
Direction   SSW   NW   SW       NE         SSE        
Maximum Water Temp   70.3   69.6   71.3   -1.0   74.9   in 2003   66.9   in 2020  
Minimum Water Temp   68.4   68.2   68.7   -0.3   72.4   in 2018   63.0   in 2020  
Average Water Temp   69.4   68.9   70.0   -0.6   73.3   in 2015   65.0   in 2020  
Sunrise/ AM Twilight   6:02:32 AM   5:00:35 AM            
Sunset / PM Twilight   7:31:45 PM   8:42:59 PM            
Length Of Day   13:29:13                          
Special Conditions   None                                  
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