Portsmouth Rhode Island Weather Almanac  
Thursday, June 27, 2024  
Mostly Cloudy, Heavy Rain/Thuderstorms & Fog early then Partly Cloudy, Continued Warm  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    June 27, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   78   76   77   +1   93   in 1963   60   in 1938  
Minimum Temperature   66   66   62   +4   68   in 2021   49   in 1893  
Average Temperature   72   71   70   +2   77   in 1953   58   in 1985  
 Month Avg Max Temperature   77.3   72.3   73.3   +4.0   78.7   in 1943   66.1   in 1903  
Month Avg Min Temperature   60.7   56.4   57.4   +3.3   60.7   in 2024   52.4   in 1907  
Month Average Temperature   69.3   64.6   65.4   +3.8   69.3   in 2024   60.2   in 1903  
High Heat Index   81   79   78   +3   97   in 1964            
Low Wind Chill                                      
Heating Degree Days   0   0   1   -1   7   in 1985   0   in 2024  
Month Heating DD   5   61   50   -45   159   in 1907   5   in 2024  
Season Heating DD   4952   4783   5509   -557   6619   in 1905   4444   in 1932    
Cooling Degree Days   7   6   5   +2   12   in 1953   0   in 2015    
Month Cooling DD   120   49   65   +55   138   in 1949   5   in 1972    
Year Cooling DD   130   49   77   +53   151   in 1957   5   in 1972    
Maximum Dew Point   70   71   67   +3   74   in 2010   47   in 1965    
Minimum Dew Point   54   65   57   -3   68   in 2006   40   in 1995    
Average  Dew Point   62   68   62   +0   70   in 2006   45   in 1965  
 Month Avg Max Dew Point   66.7   62.7   62.5   +4.2   66.7   in 2024   53.9   in 1965  
Month Avg Min Dew Point   56.0   54.5   52.7   +3.3   56.9   in 2010   44.4   in 1958  
Month Average Dew Point   61.4   58.6   57.5   +3.9   61.4   in 2024   49.4   in 1965  
Precipitation   .61   1.29   .11   +.50   2.24   in 1938            
One Hour Rain   .25   .52           .52   in 2023            
Half Hour Rain   .18   .26           .34   in 2022            
Hourly Rain Rate   1.38   6.62           6.62   in 2023            
Month Precipitation   3.67   3.01   3.20   +.47   8.93   in 1982   .05   in 1949  
Year Precipitation   32.83   23.68   22.37   +10.46   38.39   in 1998   12.67   in 1957  
Snow   0.0   0.0   ######   ######   0.0   in 1900            
Snow Depth   0   0   38895   -38895   44009   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 27, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   99%   99%   93%   +6%   100%   in 2013   69%   in 1963  
Minimum Humidity   62%   82%   60%   +2%   98%   in 1987   29%   in 2014  
Average Humidity   81%   91%   76%   +4%   99%   in 1987   52%   in 1963  
Maximum Barometer   29.91   29.84   30.02   -00.11   30.50   in 1965   29.53   in 1954  
Minimum Barometer   29.62   29.73   29.83   -00.21   30.34   in 1965   29.29   in 1970  
Average Barometer   29.77   29.79   29.93   -00.16   30.42   in 1965   29.48   in 1954  
Average Wind   6.9   10.8   6.1   +0.8   14.6   in 1985   1.7   in 1967  
Direction   WNW   S   SSW       N         ENE        
High Wind Gust   23   29   21   +2   38   in 1985   9   in 1974  
Direction   NW   S   S       NNE         S        
Maximum Water Temp   68.4   68.5   67.9   +0.5   76.3   in 2007   62.8   in 2020  
Minimum Water Temp   66.0   67.3   64.1   +1.9   70.6   in 2007   58.2   in 2005  
Average Water Temp   67.2   67.9   66.0   +1.2   73.5   in 2007   60.9   in 2020  
Sunrise/ AM Twilight   5:12:55 AM   4:40:00 AM            
Sunset / PM Twilight   8:23:14 PM   8:57:07 PM            
Length Of Day   15:10:19                          
Special Conditions   Fog, Thunderstorms                          
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