Portsmouth Rhode Island Weather Almanac  
Monday, June 24, 2024  
Mostly Cloudy, Light Sprinkle & Fog early then Partly Cloudy, Breezy and Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    June 24, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   82   75   76   +6   89   in 1921   56   in 1903  
Minimum Temperature   68   65   61   +7   70   in 1909   47   in 1932  
Average Temperature   75   70   69   +6   77   in 1983   53   in 1903  
 Month Avg Max Temperature   76.8   71.5   72.9   +4.0   78.4   in 1957   65.8   in 1903  
Month Avg Min Temperature   60.0   55.2   56.8   +3.2   60.3   in 2001   51.4   in 1907  
Month Average Temperature   68.7   63.6   65.0   +3.8   68.7   in 2024   59.3   in 1907  
High Heat Index   86   78   77   +9   94   in 2013            
Low Wind Chill                                      
Heating Degree Days   0   0   1   -1   12   in 1903   0   in 2024  
Month Heating DD   5   61   47   -42   159   in 1907   5   in 2024  
Season Heating DD   4952   4783   5506   -554   6619   in 1905   4442   in 1932    
Cooling Degree Days   10   5   4   +6   12   in 1983   0   in 2022    
Month Cooling DD   94   27   52   +42   109   in 1957   3   in 1916    
Year Cooling DD   104   27   64   +40   125   in 1957   3   in 1916    
Maximum Dew Point   72   72   66   +6   74   in 2017   46   in 1953    
Minimum Dew Point   62   65   56   +6   66   in 2010   36   in 1988    
Average  Dew Point   67   69   61   +6   70   in 2010   42   in 1953  
 Month Avg Max Dew Point   66.3   61.5   62.0   +4.3   66.3   in 2024   54.7   in 1965  
Month Avg Min Dew Point   55.9   53.1   52.2   +3.8   56.5   in 2010   43.3   in 1958  
Month Average Dew Point   61.1   57.3   57.0   +4.1   61.1   in 2024   49.3   in 1958  
Precipitation   T   .47   .12   -.12   2.04   in 2006            
One Hour Rain   T   .12           .53   in 2017            
Half Hour Rain   .00   .07           .27   in 2017            
Hourly Rain Rate   .00   1.99           4.97   in 2006            
Month Precipitation   3.03   1.70   2.85   +.18   8.93   in 1982   .01   in 1949  
Year Precipitation   32.19   22.37   22.02   +10.17   38.25   in 1998   12.67   in 1957  
Snow   0.0   0.0   ######   ######   0.0   in 1900            
Snow Depth   0   0   38892   -38892   44006   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 24, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   99%   99%   91%   +8%   100%   in 2018   57%   in 1953  
Minimum Humidity   60%   86%   57%   +3%   94%   in 2006   24%   in 1953  
Average Humidity   80%   93%   74%   +5%   97%   in 2006   41%   in 1953  
Maximum Barometer   29.65   29.99   30.01   -00.36   30.42   in 2021   29.65   in 2024  
Minimum Barometer   29.53   29.83   29.82   -00.29   30.30   in 2021   29.35   in 1944  
Average Barometer   29.59   29.91   29.91   -00.32   30.36   in 2021   29.59   in 2024  
Average Wind   8.9   6.5   5.7   +3.2   13.3   in 1984   1.3   in 1995  
Direction   SSW   SW   SW       SSE         ESE        
High Wind Gust   31   19   20   +11   31   in 2024   8   in 1995  
Direction   SSW   SW   SSW       SSW         SE        
Maximum Water Temp   69.1   67.1   66.7   +2.4   74.3   in 2007   61.3   in 2009  
Minimum Water Temp   66.0   65.8   63.1   +2.9   69.7   in 2007   59.2   in 2020  
Average Water Temp   67.6   66.5   64.9   +2.6   72.0   in 2007   60.8   in 2020  
Sunrise/ AM Twilight   5:11:53 AM   4:38:45 AM            
Sunset / PM Twilight   8:23:04 PM   8:57:07 PM            
Length Of Day   15:11:11                          
Special Conditions   Fog                                  
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