Portsmouth Rhode Island Weather Almanac  
Friday, August 2, 2024  
Clear early, Partly Cloudy Day to Mostly Cloudy PM, Fog Late, Continued Hot and Muggy  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    August 2, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   88   76   80   +8   99   in 1975   64   in 1946  
Minimum Temperature   70   56   65   +5   77   in 2006   55   in 1985  
Average Temperature   79   66   72   +7   87   in 1975   60   in 1946  
 Month Avg Max Temperature   89.0   76.5   80.0   +9.0   95.0   in 1975   65.5   in 1946  
Month Avg Min Temperature   70.5   58.0   65.0   +5.5   74.5   in 2006   55.0   in 1953  
Month Average Temperature   80.0   67.5   72.0   +8.0   84.5   in 1975   62.0   in 1946  
High Heat Index   99   76   84   +15   113   in 1975            
Low Wind Chill                                      
Heating Degree Days   0   0   0   +0   5   in 1946   0   in 2024  
Month Heating DD   0   0   0   +0   6   in 1946   0   in 2024  
Season Heating DD   0   0   3   -3   34   in 1914   0   in 2024    
Cooling Degree Days   14   1   8   +6   22   in 1975   0   in 2014    
Month Cooling DD   30   5   16   +14   39   in 1975   0   in 1947    
Year Cooling DD   472   389   344   +128   487   in 2020   144   in 1902    
Maximum Dew Point   79   59   69   +10   79   in 2024   55   in 1959    
Minimum Dew Point   68   51   62   +6   72   in 2018   42   in 1959    
Average  Dew Point   74   55   65   +9   74   in 2024   49   in 1959  
 Month Avg Max Dew Point   78.5   60.5   69.0   +9.5   78.5   in 2024   59.0   in 1953  
Month Avg Min Dew Point   69.0   50.5   62.0   +7.0   71.5   in 1979   46.0   in 1987  
Month Average Dew Point   73.8   55.5   65.0   +8.8   73.8   in 2024   53.5   in 1964  
Precipitation   .00   .00   .12   -.12   2.50   in 1965            
One Hour Rain   .00   .00           1.06   in 1965            
Half Hour Rain   .00   .00           .74   in 2008            
Hourly Rain Rate   .00   .00           6.33   in 2008            
Month Precipitation   .00   .00   .23   -.23   2.50   in 1965   .00   in 2024  
Year Precipitation   38.27   30.25   26.01   +12.26   41.55   in 1998   14.33   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 2, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   99%   94%   93%   +6%   100%   in 2017   80%   in 1975  
Minimum Humidity   67%   41%   58%   +9%   87%   in 1973   29%   in 1951  
Average Humidity   83%   68%   75%   +8%   92%   in 1996   57%   in 1959  
Maximum Barometer   29.93   30.21   30.05   -00.12   30.43   in 1903   29.74   in 2011  
Minimum Barometer   29.87   30.15   29.86   +00.01   30.22   in 1998   29.52   in 1970  
Average Barometer   29.90   30.18   29.95   -00.05   30.27   in 1998   29.64   in 1970  
Average Wind   4.8   5.6   5.4   -0.6   10.3   in 1966   1.7   in 1996  
Direction   S   SSE   SSW       SSW         SSE        
High Wind Gust   16   16   21   -5   43   in 1927   11   in 1982  
Direction   SSW   NW   SSW       NE         SE        
Maximum Water Temp   74.7   71.2   72.6   +2.1   79.1   in 2006   68.4   in 2020  
Minimum Water Temp   71.4   68.2   68.7   +2.7   71.4   in 2024   64.6   in 2004  
Average Water Temp   73.1   69.7   70.7   +2.4   74.4   in 2006   67.1   in 1996  
Sunrise/ AM Twilight   5:41:11 AM   4:42:42 AM            
Sunset / PM Twilight   8:00:45 PM   8:56:21 PM            
Length Of Day   14:19:34                          
Special Conditions   Fog, Haze  
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