Portsmouth Rhode Island Weather Almanac  
Tuesday, June 4, 2024  
Clear to Partly Cloudy PM, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    June 4, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   72   56   70   +2   90   in 1919   54   in 1945  
Minimum Temperature   55   45   54   +1   63   in 1963   43   in 1907  
Average Temperature   64   51   62   +2   75   in 1919   51   in 2023  
 Month Avg Max Temperature   77.5   68.5   70.0   +7.5   81.8   in 1925   55.8   in 1907  
Month Avg Min Temperature   55.0   50.8   53.5   +1.5   60.5   in 2010   44.5   in 1907  
Month Average Temperature   66.8   60.0   62.0   +4.8   70.5   in 1925   50.3   in 1907  
High Heat Index   72   55   70   +2   89   in 1919            
Low Wind Chill                             36   in 1965  
Heating Degree Days   1   14   4   -3   14   in 2023   0   in 2020  
Month Heating DD   1   24   15   -14   59   in 1907   0   in 1999  
Season Heating DD   4948   4746   5475   -527   6554   in 1905   4374   in 1932    
Cooling Degree Days   0   0   1   -1   10   in 1919   0   in 2024    
Month Cooling DD   8   4   4   +4   27   in 1895   0   in 2022    
Year Cooling DD   19   4   16   +3   55   in 1991   0   in 2003    
Maximum Dew Point   61   47   59   +2   70   in 2016   44   in 1998    
Minimum Dew Point   52   42   49   +3   62   in 1963   34   in 1964    
Average  Dew Point   57   45   54   +3   65   in 2010   40   in 1998  
 Month Avg Max Dew Point   61.0   58.3   59.0   +2.0   67.0   in 2010   47.3   in 1953  
Month Avg Min Dew Point   50.3   48.3   48.8   +1.5   58.8   in 2010   35.5   in 1953  
Month Average Dew Point   55.6   53.3   53.8   +1.9   62.9   in 2010   41.4   in 1953  
Precipitation   .00   .01   .12   -.12   2.12   in 2007            
One Hour Rain   .00   .01           .89   in 2007            
Half Hour Rain   .00   .01           .53   in 2007            
Hourly Rain Rate   .00   .00           6.00   in 2007            
Month Precipitation   T   .01   .45   -.45   2.61   in 2007   .00   in 2020  
Year Precipitation   29.16   20.68   19.62   +9.54   36.73   in 1983   11.66   in 1905  
Snow   0.0   0.0   ######   ######   0.0   in 1900            
Snow Depth   0   0   38872   -38872   43986   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 4, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   96%   93%   92%   +4%   100%   in 2021   69%   in 1998  
Minimum Humidity   65%   69%   58%   +7%   94%   in 1979   28%   in 1977  
Average Humidity   81%   81%   75%   +5%   97%   in 1979   50%   in 1977  
Maximum Barometer   30.09   30.08   30.02   +00.07   30.39   in 1976   29.63   in 1954  
Minimum Barometer   29.97   29.91   29.82   +00.15   30.22   in 1958   29.29   in 2007  
Average Barometer   30.03   30.00   29.92   +00.11   30.30   in 1976   29.56   in 2007  
Average Wind   6.0   13.0   6.6   -0.6   13.0   in 2023   1.9   in 2009  
Direction   S   N   SW       N         SSE        
High Wind Gust   18   29   22   -4   36   in 1986   10   in 1987  
Direction   SSE   NW   SW       SW         S        
Maximum Water Temp   63.3   59.0   60.7   +2.6   67.8   in 2010   55.0   in 2020  
Minimum Water Temp   59.7   58.1   57.3   +2.4   62.2   in 2010   51.5   in 2020  
Average Water Temp   61.5   58.6   59.0   +2.5   65.0   in 2010   53.3   in 2020  
Sunrise/ AM Twilight   5:12:19 AM   4:38:43 AM            
Sunset / PM Twilight   8:14:47 PM   8:48:51 PM            
Length Of Day   15:02:28                          
Special Conditions   None                                  
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