Portsmouth Rhode Island Weather Almanac  
Tuesday, July 11, 2023  
Clear, Less Humid and Much Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    July 11, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   86   77   80   +6   91   in 1993   64   in 1917  
Minimum Temperature   65   61   65   +0   74   in 1911   53   in 1953  
Average Temperature   76   69   73   +3   83   in 1911   61   in 1917  
 Month Avg Max Temperature   81.3   79.3   79.3   +2.0   86.6   in 1955   70.6   in 1914  
Month Avg Min Temperature   67.3   62.7   63.8   +3.5   70.6   in 2013   55.9   in 1962  
Month Average Temperature   74.5   71.3   71.8   +2.7   76.6   in 1955   64.1   in 1914  
High Heat Index   91   78           100   in 1911            
Low Wind Chill                                      
Heating Degree Days   0   0   0   +0   4   in 1917   0   in 2023  
Month Heating DD   0   0   3   -3   23   in 1914   0   in 2023  
Season Heating DD   0   0   3   -3   23   in 1914   0   in 2023  
Cooling Degree Days   11   4   6   +5   18   in 1911   0   in 2016  
Month Cooling DD   105   69   75   +30   128   in 1955   13   in 1914  
Year Cooling DD   181   164   168   +13   258   in 2010   40   in 1972  
Maximum Dew Point   72   65   69   +3   75   in 2011   50   in 2002  
Minimum Dew Point   61   57   60   +1   70   in 2020   41   in 1989  
Average  Dew Point   67   61   64   +3   72   in 2020   47   in 2002  
 Month Avg Max Dew Point   74.3   67.3   67.8   +6.5   74.3   in 2023   58.1   in 1982  
Month Avg Min Dew Point   66.3   57.0   59.3   +7.0   68.5   in 2013   48.0   in 1962  
Month Average Dew Point   70.3   62.1   63.5   +6.7   71.1   in 2013   53.5   in 1982  
Precipitation   .00   .00   .10   -.10   1.78   in 1959            
One Hour Rain   .00   .00           .46   in 1959            
Hourly Rain Rate   .00   .00           4.47   in 2013            
Month Precipitation   2.63   .30   1.16   +1.47   4.76   in 2009   .00   in 2019  
Year Precipitation   27.11   23.20   23.73   +3.38   40.76   in 1998   13.04   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  
    July 11, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   98%   91%   +8%   100%   in 2007   72%   in 1971  
Minimum Humidity   55%   52%   56%   -1%   89%   in 2006   28%   in 1981  
Average Humidity   77%   75%   74%   +3%   95%   in 1984   56%   in 2005  
Maximum Barometer   29.88   30.02   30.01   -00.13   30.33   in 1996   29.75   in 2001  
Minimum Barometer   29.77   29.87   29.82   -00.05   30.13   in 1996   29.50   in 1976  
Average Barometer   29.83   29.95   29.92   -00.09   30.23   in 1996   29.63   in 1973  
Average Wind   5.8   7.3   5.6   +0.2   10.5   in 1974   2.1   in 1971  
Direction   NW   SSW   SSW       N N
High Wind Gust   19   26   21   -2   36   in 2001   10   in 1971  
Direction   WNW   SSW   SSW       WNW WSW
Maximum Water Temp   72.9   70.2   70.0   +2.9   74.4   in 2012   64.8   in 2003  
Minimum Water Temp   70.2   68.5   66.1   +4.1   70.2   in 2023   61.6   in 2006  
Average Water Temp   71.6   69.4   68.0   +3.5   72.3   in 2012   63.7   in 2003  
Sunrise/ AM Twilight   5:20:56 AM   4:49:18 AM            
Sunset / PM Twilight   8:19:52 PM   8:52:33 PM            
Length Of Day   14:58:56                          
Special Conditions   None                              
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