Portsmouth Rhode Island Weather Almanac  
Friday, July 28, 2023  
Partly Cloudy early then Clear, Hot and Very Humid  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    July 28, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   87   81   80   +7   93   in 2020   66   in 1911  
Minimum Temperature   70   67   65   +5   75   in 2020   54   in 2001  
Average Temperature   79   74   73   +6   84   in 2020   63   in 1914  
 Month Avg Max Temperature   82.0   81.9   79.7   +2.3   84.6   in 1952   73.8   in 1902  
Month Avg Min Temperature   68.1   66.1   64.6   +3.5   70.1   in 2013   59.2   in 1962  
Month Average Temperature   75.3   74.3   72.5   +2.8   76.3   in 2013   67.6   in 1902  
High Heat Index   98   86           105   in 1949            
Low Wind Chill                                      
Heating Degree Days   0   0   0   +0   2   in 1914   0   in 2023  
Month Heating DD   0   0   3   -3   25   in 1914   0   in 2023  
Season Heating DD   0   0   3   -3   25   in 1914   0   in 2023  
Cooling Degree Days   14   9   8   +6   19   in 2020   0   in 2001  
Month Cooling DD   289   259   211   +78   316   in 2013   87   in 1902  
Year Cooling DD   365   354   304   +61   450   in 2010   112   in 1902  
Maximum Dew Point   78   75   70   +8   78   in 2023   56   in 1962  
Minimum Dew Point   70   64   61   +9   70   in 2023   47   in 2001  
Average  Dew Point   74   70   65   +9   74   in 2023   52   in 2001  
 Month Avg Max Dew Point   74.6   70.7   68.6   +6.1   74.6   in 2023   61.8   in 1962  
Month Avg Min Dew Point   66.5   61.6   60.2   +6.4   67.4   in 2013   52.1   in 1965  
Month Average Dew Point   70.6   66.2   64.4   +6.2   70.6   in 2023   56.9   in 1962  
Precipitation   .00   .00   .10   -.10   3.17   in 2012            
One Hour Rain   .00   .00           2.51   in 2012            
Hourly Rain Rate   .00   .00           7.02   in 2015            
Month Precipitation   5.53   .49   2.78   +2.75   8.73   in 2009   .36   in 1952  
Year Precipitation   30.01   23.39   25.35   +4.66   41.06   in 1998   13.93   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 28, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   98%   99%   93%   +5%   100%   in 2017   75%   in 1968  
Minimum Humidity   70%   84%   63%   +8%   94%   in 2004   26%   in 1999  
Average Humidity   84%   92%   78%   +6%   97%   in 2004   56%   in 1999  
Maximum Barometer   29.98   29.90   30.00   -00.02   30.32   in 2001   29.67   in 2014  
Minimum Barometer   29.91   29.79   29.83   +00.08   30.21   in 1996   29.44   in 1989  
Average Barometer   29.95   29.85   29.92   +00.03   30.26   in 1996   29.57   in 2014  
Average Wind   5.6   6.3   5.4   +0.2   10.3   in 1969   2.1   in 2004  
Direction   SSW   SW   SSW       S N
High Wind Gust   22   21   21   +1   42   in 1989   12   in 2011  
Direction   SSW   SSW   SSW       NNW S
Maximum Water Temp   77.9   73.9   72.0   +5.9   77.9   in 2023   68.2   in 2004  
Minimum Water Temp   76.3   72.0   68.7   +7.6   76.3   in 2023   61.3   in 2003  
Average Water Temp   77.1   73.0   70.4   +6.7   77.1   in 2023   66.7   in 2004  
Sunrise/ AM Twilight   5:35:34 AM   5:05:50 AM            
Sunset / PM Twilight   8:07:01 PM   8:37:39 PM            
Length Of Day   14:31:27                          
Special Conditions   None                              
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