Portsmouth Rhode Island Weather Almanac  
Thursday, June 20, 2024  
Clear, Warm and Humid  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    June 20, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   83   69   75   +8   92   in 1931   58   in 1958  
Minimum Temperature   66   54   59   +7   67   in 1949   46   in 1956  
Average Temperature   75   62   67   +8   79   in 1931   55   in 1905  
 Month Avg Max Temperature   75.9   71.2   72.3   +3.6   78.2   in 1925   64.9   in 1907  
Month Avg Min Temperature   58.8   54.5   56.2   +2.6   59.4   in 1899   49.9   in 1907  
Month Average Temperature   67.6   63.1   64.3   +3.3   68.8   in 1925   57.5   in 1907  
High Heat Index   88   69   76   +12   96   in 1931            
Low Wind Chill                             45   in 1956  
Heating Degree Days   0   3   1   -1   10   in 1905   0   in 2024  
Month Heating DD   5   58   43   -38   159   in 1907   3   in 1899  
Season Heating DD   4952   4780   5502   -550   6615   in 1905   4433   in 1932    
Cooling Degree Days   10   0   3   +7   14   in 1931   0   in 2023    
Month Cooling DD   57   19   37   +20   92   in 1925   0   in 1965    
Year Cooling DD   67   19   48   +19   101   in 2001   1   in 1948    
Maximum Dew Point   73   60   64   +9   74   in 1995   49   in 1970    
Minimum Dew Point   63   53   55   +8   63   in 2024   37   in 2014    
Average  Dew Point   68   57   59   +9   68   in 2024   45   in 1970  
 Month Avg Max Dew Point   64.8   60.6   61.4   +3.5   65.3   in 1996   53.2   in 1965  
Month Avg Min Dew Point   54.3   52.3   51.5   +2.8   55.0   in 2010   43.1   in 1958  
Month Average Dew Point   59.5   56.4   56.3   +3.2   60.0   in 1996   48.6   in 1965  
Precipitation   .00   .00   .12   -.12   1.48   in 1981            
One Hour Rain   .00   .00           .51   in 1968            
Half Hour Rain   .00   .00           .30   in 2006            
Hourly Rain Rate   .00   .00           2.04   in 2006            
Month Precipitation   .77   1.23   2.37   -1.60   8.90   in 1982   .01   in 1949  
Year Precipitation   29.93   21.90   21.54   +8.39   38.24   in 1998   12.67   in 1957  
Snow   0.0   0.0   ######   ######   0.0   in 1900            
Snow Depth   0   0   38888   -38888   44002   in              
Month Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in Many  
Season Snow   12.7   9.1   33.8   -21.1   84.1   in 1996   5.0   in 1998  
    June 20, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   93%   97%   93%   +0%   100%   in 2019   54%   in 1954  
Minimum Humidity   72%   72%   58%   +14%   93%   in 2019   28%   in 2014  
Average Humidity   83%   85%   75%   +7%   97%   in 2019   43%   in 1954  
Maximum Barometer   30.32   30.29   30.02   +00.30   30.55   in 2002   29.67   in 1959  
Minimum Barometer   30.19   30.18   29.82   +00.37   30.45   in 2002   29.39   in 1985  
Average Barometer   30.26   30.24   29.92   +00.34   30.50   in 2002   29.62   in 1959  
Average Wind   6.8   4.7   5.9   +0.9   14.0   in 1967   1.6   in 1998  
Direction   SSW   SSE   SSW       NNE         SSE        
High Wind Gust   22   18   22   +0   39   in 1967   10   in 1998  
Direction   SSW   S   SW       NNE         ENE        
Maximum Water Temp   68.9   65.1   65.8   +3.1   70.3   in 2007   61.8   in 2003  
Minimum Water Temp   66.2   63.3   62.1   +4.1   67.2   in 2007   57.4   in 2003  
Average Water Temp   67.6   64.2   64.0   +3.6   68.8   in 2007   59.6   in 2003  
Sunrise/ AM Twilight   5:10:55 AM   4:37:34 AM            
Sunset / PM Twilight   8:22:23 PM   8:56:35 PM            
Length Of Day   15:11:28                          
Special Conditions   None                                  
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