Portsmouth Rhode Island Weather Almanac  
Sunday, August 6, 2023  
Clear, Dry and Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    August 6, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   80   87   79   +1   95   in 1918   66   in 1936  
Minimum Temperature   62   74   65   -3   74   in 2022   52   in 1972  
Average Temperature   71   81   72   -1   82   in 1918   61   in 1994  
 Month Avg Max Temperature   78.3   84.7   79.8   -1.5   88.5   in 1975   70.3   in 1903  
Month Avg Min Temperature   61.8   70.2   65.0   -3.2   71.7   in 1979   55.5   in 1964  
Month Average Temperature   70.3   77.7   72.0   -1.7   79.8   in 1975   64.3   in 1964  
High Heat Index   81   97   81   +0   111   in 1918            
Low Wind Chill                                 in #N/A  
Heating Degree Days   0   0   0   +0   4   in 1994   0   in 2023  
Month Heating DD   0   0   0   +0   11   in 1903   0   in 2023  
Season Heating DD   0   0   0   +0   11   in 1903   0   in 2023  
Cooling Degree Days   6   16   6   -0   17   in 1918   0   in 2004  
Month Cooling DD   32   76   48   -16   89   in 1975   5   in 1964  
Year Cooling DD   416   464   376   +40   540   in 2020   176   in 1902  
Maximum Dew Point   64   76   69   -5   76   in 2022   52   in 1951  
Minimum Dew Point   56   72   61   -5   72   in 2022   43   in 1957  
Average  Dew Point   60   74   65   -5   74   in 2022   49   in 1951  
 Month Avg Max Dew Point   65.0   75.2   69.0   -4.0   75.2   in 2022   57.2   in 1964  
Month Avg Min Dew Point   56.2   67.3   61.5   -5.3   69.3   in 1988   48.2   in 1964  
Month Average Dew Point   60.6   71.3   65.0   -4.4   71.7   in 2018   52.7   in 1964  
Precipitation   .00   .00   .12   -.12   2.39   in 1952            
One Hour Rain   .00   .00           1.56   in 1952            
Half Hour Rain   .00   .00           .12   in 2007            
Hourly Rain Rate   .00   .00           .81   in 2007            
Month Precipitation   T   .15   .71   -.71   3.98   in 1952   .00   in 1998  
Year Precipitation   30.25   23.56   26.36   +3.89   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 6, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   92%   99%   92%   -0%   100%   in 2003   73%   in 1951  
Minimum Humidity   50%   65%   57%   -7%   92%   in 1952   35%   in 1957  
Average Humidity   71%   82%   75%   -4%   96%   in 1952   55%   in 1957  
Maximum Barometer   30.01   30.22   30.06   -00.05   30.37   in 1992   29.68   in 1954  
Minimum Barometer   29.96   30.16   29.87   +00.09   30.26   in 1996   29.38   in 1989  
Average Barometer   29.99   30.19   29.96   +00.02   30.31   in 1996   29.58   in 1954  
Average Wind   5.5   6.9   5.7   -0.2   12.4   in 2002   2.3   in 1997  
Direction   N   SSW   SSW       NNW NNW
High Wind Gust   17   29   20   -3   31   in 1902   11   in 2019  
Direction   SSW   SSW   SW       S E
Maximum Water Temp   71.6   76.1   72.2   -0.6   76.1   in 2022   67.0   in 2004  
Minimum Water Temp   68.5   73.2   68.8   -0.3   73.2   in 2022   65.1   in 2001  
Average Water Temp   70.1   74.7   70.5   -0.5   74.7   in 2022   66.3   in 2004  
Sunrise/ AM Twilight   5:44:26 AM   4:45:23 AM            
Sunset / PM Twilight   7:56:51 PM   8:55:02 PM            
Length Of Day   14:12:25                          
Special Conditions   None                              
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