Portsmouth Rhode Island Weather Almanac  
Monday, August 26, 2024  
Mostly Cloudy early, P Cloudy, Rain/Thunderstorms Late Aftenoon,  Mostly Cloudy PM, Light Winds, Continued Warm  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    August 26, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   80   84   78   +2   98   in 1948   65   in 1926  
Minimum Temperature   62   68   63   -1   73   in 1900   45   in 1981  
Average Temperature   71   76   70   +1   85   in 1948   59   in 1981  
 Month Avg Max Temperature   79.6   78.3   78.8   +0.8   83.5   in 2020   73.2   in 1964  
Month Avg Min Temperature   63.7   63.8   64.0   -0.3   67.8   in 1939   56.9   in 1964  
Month Average Temperature   71.8   71.3   71.4   +0.4   75.8   in 1939   65.3   in 1964  
High Heat Index   84   89   79   +5   112   in 1948            
Low Wind Chill                             45   in 1981  
Heating Degree Days   0   0   0   +0   6   in 1981   0   in 2024  
Month Heating DD   2   0   0   +2   26   in 1964   0   in 2023  
Season Heating DD   2   0   3   -1   35   in 1914   0   in 2023    
Cooling Degree Days   6   11   6   +0   20   in 1948   0   in 2019    
Month Cooling DD   180   164   181   -1   281   in 1939   35   in 1964    
Year Cooling DD   622   548   509   +113   740   in 2020   225   in 1902    
Maximum Dew Point   72   74   67   +5   79   in 2021   50   in 1989    
Minimum Dew Point   62   67   58   +4   69   in 2021   41   in 1981    
Average  Dew Point   67   71   62   +5   74   in 2021   46   in 1989  
 Month Avg Max Dew Point   70.8   68.9   68.3   +2.5   72.5   in 2021   59.7   in 1964  
Month Avg Min Dew Point   61.4   59.5   60.0   +1.4   64.9   in 2009   49.3   in 1964  
Month Average Dew Point   66.1   64.2   64.1   +2.0   68.4   in 2021   54.5   in 1964  
Precipitation   .20   .03   .11   +.09   4.43   in 1924            
One Hour Rain   .10   .03           1.15   in 1985            
Half Hour Rain   .06   .02           .22   in 2022            
Hourly Rain Rate   .40   .04           1.15   in 2022            
Month Precipitation   2.42   5.09   3.08   -.66   11.04   in 1946   .27   in 1993  
Year Precipitation   40.69   35.34   28.86   +11.83   44.74   in 1998   16.49   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 26, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   99%   99%   93%   +6%   100%   in 2002   72%   in 1982  
Minimum Humidity   73%   63%   58%   +15%   94%   in 1958   32%   in 2020  
Average Humidity   86%   81%   75%   +11%   96%   in 1958   53%   in 2020  
Maximum Barometer   30.19   29.86   30.11   +00.08   30.46   in 1991   29.86   in 2023  
Minimum Barometer   30.09   29.80   29.93   +00.16   30.25   in 2012   29.58   in 1988  
Average Barometer   30.14   29.83   30.02   +00.12   30.31   in 2004   29.76   in 1968  
Average Wind   3.4   3.7   5.2   -1.8   9.7   in 1956   1.9   in 1992  
Direction   W   WNW   SSW       SW         S        
High Wind Gust   21   17   20   +1   57   in 1924   10   in 1967  
Direction   ESE   SSW   SSW       ESE         SSE        
Maximum Water Temp   71.4   70.7   71.3   +0.1   77.0   in 2021   66.0   in 2020  
Minimum Water Temp   68.9   68.5   68.7   +0.2   73.8   in 2021   62.5   in 2003  
Average Water Temp   70.2   69.6   70.0   +0.2   75.4   in 2021   64.9   in 2020  
Sunrise/ AM Twilight   6:05:35 AM   5:03:43 AM            
Sunset / PM Twilight   7:27:01 PM   8:39:52 PM            
Length Of Day   13:21:26                          
Special Conditions   Dense Fog, Haze, Thunderstorms  
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