Portsmouth Rhode Island Weather Almanac  
Saturday, August 5, 2023  
Mostly Cloudy early then Partly Cloudy, Light Winds and Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    August 5, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   82   88   80   +2   94   in 1944   61   in 1903  
Minimum Temperature   67   74   65   +2   75   in 2012   54   in 1972  
Average Temperature   75   81   72   +3   83   in 1944   59   in 1903  
 Month Avg Max Temperature   78.0   84.2   80.0   -2.0   90.2   in 1975   70.8   in 1903  
Month Avg Min Temperature   61.8   69.4   65.0   -3.2   72.4   in 1979   55.0   in 1964  
Month Average Temperature   70.2   77.0   72.0   -1.8   80.8   in 1975   63.8   in 1964  
High Heat Index   85   95   82   +3   109   in 1944            
Low Wind Chill                                 in #N/A  
Heating Degree Days   0   0   0   +0   6   in 1903   0   in 2023  
Month Heating DD   0   0   0   +0   9   in 1964   0   in 2023  
Season Heating DD   0   0   0   +0   9   in 1964   0   in 2023  
Cooling Degree Days   10   16   7   +3   18   in 1944   0   in 2004  
Month Cooling DD   26   60   40   -14   79   in 1975   3   in 1964  
Year Cooling DD   410   448   368   +42   529   in 2020   168   in 1902  
Maximum Dew Point   71   77   69   +2   77   in 2022   54   in 1972  
Minimum Dew Point   64   70   61   +3   73   in 2012   44   in 2013  
Average  Dew Point   68   74   65   +3   75   in 2012   49   in 1972  
 Month Avg Max Dew Point   65.2   75.0   69.0   -3.8   75.4   in 2020   56.8   in 1964  
Month Avg Min Dew Point   56.2   66.4   61.6   -5.4   70.0   in 1979   47.2   in 1964  
Month Average Dew Point   60.7   70.7   65.0   -4.3   71.9   in 2012   52.0   in 1964  
Precipitation   .00   .00   .12   -.12   1.81   in 2021            
One Hour Rain   .00   .00           .44   in 2021            
Half Hour Rain   .00   .00           .29   in 2021            
Hourly Rain Rate   .00   .00           2.65   in 2021            
Month Precipitation   T   .15   .59   -.59   3.61   in 2021   .00   in 2012  
Year Precipitation   30.25   23.56   26.24   +4.01   41.55   in 1998   14.69   in 1957  
Snow                                      
Snow Depth                                      
Month Snow                                      
Season Snow   0.0   0.0   0.0   +0.0   0.0   in 1996   0.0   in 1998  
    August 5, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   97%   99%   94%   +3%   100%   in 2018   78%   in 1973  
Minimum Humidity   65%   60%   61%   +4%   91%   in 2021   33%   in 2013  
Average Humidity   81%   80%   77%   +4%   95%   in 2021   57%   in 2013  
Maximum Barometer   29.97   30.17   30.03   -00.06   30.40   in 1985   29.67   in 1954  
Minimum Barometer   29.90   30.03   29.85   +00.05   30.23   in 1996   29.38   in 1989  
Average Barometer   29.94   30.10   29.94   -00.01   30.27   in 1996   29.58   in 1989  
Average Wind   3.7   4.7   5.9   -2.2   12.4   in 1988   1.7   in 1975  
Direction   WNW   SW   SSW       SW SSE
High Wind Gust   14   19   20   -6   38   in 1981   10   in 1975  
Direction   SW   SW   SSW       W SSE
Maximum Water Temp   70.9   74.8   72.4   -1.5   76.0   in 2006   66.9   in 1997  
Minimum Water Temp   69.0   72.3   68.9   +0.1   72.6   in 2010   64.1   in 2006  
Average Water Temp   70.0   73.6   70.6   -0.7   74.0   in 2012   66.3   in 1997  
Sunrise/ AM Twilight   5:43:25 AM   4:44:41 AM            
Sunset / PM Twilight   7:58:05 PM   8:55:26 PM            
Length Of Day   14:14:40                          
Special Conditions   None                              
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