Portsmouth Rhode Island Weather Almanac  
Thursday, August 22, 2024  
Clear to Partly Cloudy PM, Low Humidity, Continued Cool  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    August 22, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   74   77   78   -4   90   in 1976   66   in 1999  
Minimum Temperature   60   61   63   -3   74   in 2009   47   in 1982  
Average Temperature   67   69   71   -4   80   in 2019   58   in 1982  
 Month Avg Max Temperature   79.4   78.8   79.0   +0.4   84.1   in 1937   72.7   in 1964  
Month Avg Min Temperature   64.3   64.1   64.2   +0.1   69.4   in 2018   56.2   in 1964  
Month Average Temperature   72.0   71.7   71.6   +0.4   76.4   in 1937   64.8   in 1964  
High Heat Index   75   77   79   -4   103   in 1976            
Low Wind Chill                             45   in 1895  
Heating Degree Days   0   0   0   +0   7   in 1982   0   in 2024  
Month Heating DD   2   0   0   +2   26   in 1964   0   in 2023  
Season Heating DD   2   0   3   -1   34   in 1914   0   in 2023    
Cooling Degree Days   2   4   6   -4   15   in 2019   0   in 2007    
Month Cooling DD   157   148   157   +0   251   in 1937   21   in 1964    
Year Cooling DD   599   532   485   +114   694   in 2020   214   in 1902    
Maximum Dew Point   60   69   67   -7   78   in 1976   45   in 1988    
Minimum Dew Point   53   52   59   -6   72   in 2009   36   in 1982    
Average  Dew Point   57   61   63   -6   74   in 2019   41   in 1988  
 Month Avg Max Dew Point   71.1   69.2   68.5   +2.6   73.2   in 2018   58.5   in 1964  
Month Avg Min Dew Point   61.9   59.5   60.3   +1.5   66.9   in 2003   47.8   in 1964  
Month Average Dew Point   66.5   64.4   64.4   +2.1   70.0   in 2018   53.1   in 1964  
Precipitation   .00   .00   .12   -.12   2.21   in 1908            
One Hour Rain   .00   .00           .87   in 1977            
Half Hour Rain   .00   .00           .57   in 2019            
Hourly Rain Rate   .00   .00           5.94   in 2019            
Month Precipitation   2.22   4.15   2.63   -.41   9.62   in 1946   .16   in 1993  
Year Precipitation   40.49   34.40   28.41   +12.08   43.94   in 1983   15.70   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 22, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   89%   95%   94%   -5%   100%   in 2018   67%   in 1982  
Minimum Humidity   59%   43%   58%   +1%   94%   in 2022   34%   in 2005  
Average Humidity   74%   69%   76%   -2%   97%   in 2022   54%   in 1982  
Maximum Barometer   30.19   30.08   30.07   +00.12   30.49   in 1957   29.78   in 1994  
Minimum Barometer   30.05   29.97   29.87   +00.18   30.30   in 1957   29.54   in 2021  
Average Barometer   30.12   30.03   29.97   +00.15   30.40   in 1957   29.70   in 1971  
Average Wind   5.1   9.9   5.5   -0.4   13.3   in 2021   2.0   in 2022  
Direction   WNW   N   SSW       S         E        
High Wind Gust   18   27   20   -2   42   in 2021   9   in 2022  
Direction   W   ENE   SW       E         S        
Maximum Water Temp   69.6   71.1   71.3   -1.7   76.6   in 2003   66.7   in 2020  
Minimum Water Temp   68.0   66.9   68.6   -0.6   72.4   in 2015   64.2   in 2020  
Average Water Temp   68.8   69.0   69.9   -1.1   73.5   in 2015   65.5   in 2020  
Sunrise/ AM Twilight   6:01:31 AM   4:59:34 AM            
Sunset / PM Twilight   7:33:19 PM   8:43:57 PM            
Length Of Day   13:31:48                          
Special Conditions   None                                  
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