Portsmouth Rhode Island Weather Almanac  
Wednesday, August 23, 2023  
Clear and Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    August 23, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   76   82   78   -2   88   in 1960   63   in 1937  
Minimum Temperature   58   68   63   -5   73   in 2009   47   in 1957  
Average Temperature   67   75   71   -4   79   in 2009   59   in 1937  
 Month Avg Max Temperature   78.7   82.9   78.9   -0.3   83.7   in 1939   72.7   in 1964  
Month Avg Min Temperature   63.9   67.0   64.2   -0.3   69.0   in 2018   56.4   in 1964  
Month Average Temperature   71.5   75.2   71.6   -0.1   76.0   in 1939   64.9   in 1964  
High Heat Index   77   89   78   -1   92   in 2020            
Low Wind Chill                             44   in 1957  
Heating Degree Days   0   0   0   +0   6   in 1937   0   in 2023  
Month Heating DD   0   0   0   +0   26   in 1964   0   in 2023  
Season Heating DD   0   0   0   +0   26   in 1964   0   in 2023  
Cooling Degree Days   2   10   5   -3   14   in 2009   0   in 2010  
Month Cooling DD   150   235   163   -13   253   in 1939   23   in 1964  
Year Cooling DD   534   623   491   +43   706   in 2020   216   in 1902  
Maximum Dew Point   61   76   67   -6   76   in 2022   53   in 1988  
Minimum Dew Point   52   68   59   -7   70   in 2021   38   in 1987  
Average  Dew Point   57   72   63   -6   73   in 2021   46   in 1957  
 Month Avg Max Dew Point   68.9   71.1   68.4   +0.4   72.8   in 2018   58.9   in 1964  
Month Avg Min Dew Point   59.2   63.5   60.3   -1.1   66.1   in 2003   48.3   in 1964  
Month Average Dew Point   64.0   67.3   64.3   -0.3   69.4   in 2018   53.6   in 1964  
Precipitation   .00   .02   .12   -.12   1.42   in 1946            
One Hour Rain   .00   .02           .51   in 1955            
Half Hour Rain   .00   .00           .25   in 2009            
Hourly Rain Rate   .00   .39           7.02   in 2021            
Month Precipitation   4.15   .81   2.75   +1.40   11.04   in 1946   .16   in 1993  
Year Precipitation   34.40   24.22   28.40   +6.00   43.94   in 1983   15.70   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 23, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   91%   99%   92%   -1%   100%   in 2021   72%   in 1959  
Minimum Humidity   45%   81%   57%   -12%   89%   in 1966   29%   in 1957  
Average Humidity   68%   90%   75%   -7%   95%   in 1966   55%   in 1959  
Maximum Barometer   30.15   29.86   30.08   +00.07   30.54   in 1992   29.75   in 1971  
Minimum Barometer   30.08   29.80   29.89   +00.19   30.23   in 1954   29.47   in 1971  
Average Barometer   30.12   29.83   29.98   +00.13   30.35   in 1954   29.61   in 1971  
Average Wind   5.9   4.9   5.5   +0.4   13.1   in 2010   1.9   in 2006  
Direction   N   SW   SSW       NE W
High Wind Gust   16   23   21   -5   48   in 1930   10   in 2007  
Direction   NW   SSW   SW       NE SSE
Maximum Water Temp   69.6   73.9   71.4   -1.8   74.9   in 2003   66.9   in 2020  
Minimum Water Temp   68.2   72.3   68.7   -0.5   72.4   in 2018   63.0   in 2020  
Average Water Temp   68.9   73.1   70.0   -1.1   73.3   in 2015   65.0   in 2020  
Sunrise/ AM Twilight   6:01:45 AM   5:00:35 AM            
Sunset / PM Twilight   7:32:56 PM   8:42:59 PM            
Length Of Day   13:31:11                          
Special Conditions   None                              
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