Portsmouth Rhode Island Weather Almanac  
Friday, June 23, 2023  
Cloudy early then Mostly Cloudy, Foggy Late, Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    June 23, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   75   74   76   -1   90   in 1983   56   in 1903  
Minimum Temperature   60   56   60   +0   68   in 2010   50   in 1992  
Average Temperature   68   65   68   +0   77   in 1983   54   in 1903  
 Month Avg Max Temperature   71.4   73.7   72.7   -1.3   78.1   in 1957   66.1   in 2003  
Month Avg Min Temperature   54.7   57.2   56.7   -1.9   60.0   in 2001   51.1   in 1907  
Month Average Temperature   63.3   65.7   64.8   -1.5   68.4   in 1925   59.0   in 1907  
High Heat Index   77   76           90   in 1983            
Low Wind Chill                                      
Heating Degree Days   0   0   1   -1   11   in 1903   0   in 2023  
Month Heating DD   61   24   46   +15   159   in 1907   5   in 1899  
Season Heating DD   4783   5009   5474   -691   6619   in 1905   4436   in 1932  
Cooling Degree Days   3   0   3   -0   12   in 1983   0   in 2022  
Month Cooling DD   22   39   48   -26   100   in 1949   2   in 2003  
Year Cooling DD   31   62   60   -29   116   in 2001   2   in 2003  
Maximum Dew Point   68   65   65   +3   73   in 1988   49   in 1963  
Minimum Dew Point   59   54   56   +3   66   in 2010   35   in 1963  
Average  Dew Point   64   60   61   +3   69   in 2010   42   in 1963  
 Month Avg Max Dew Point   61.0   62.0   61.8   -0.8   65.1   in 2021   54.3   in 1965  
Month Avg Min Dew Point   52.6   52.6   52.0   +0.6   56.0   in 2010   43.2   in 1958  
Month Average Dew Point   56.8   57.3   56.8   -0.0   60.3   in 2010   49.2   in 1958  
Precipitation   .00   .00   .12   -.12   .79   in 1959            
One Hour Rain   .00   .00           .63   in 1959            
Hourly Rain Rate   .00   .00           3.27   in 2015            
Month Precipitation   1.23   2.71   2.73   -1.50   8.93   in 1982   .01   in 1949  
Year Precipitation   21.90   21.91   21.77   +.13   38.25   in 1998   12.67   in 1957  
Snow                                      
Snow Depth                                      
Month Snow                                      
Season Snow   9.1   34.7   33.5   -24.4   84.1   in 1996   5.0   in 1998  
    June 23, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   98%   91%   +8%   100%   in 2017   56%   in 1963  
Minimum Humidity   79%   59%   56%   +23%   92%   in 1951   20%   in 1993  
Average Humidity   89%   79%   74%   +15%   96%   in 1951   39%   in 1993  
Maximum Barometer   30.09   30.05   30.01   +00.08   30.33   in 2002   29.72   in 1974  
Minimum Barometer   29.99   29.97   29.81   +00.18   30.08   in 1976   29.38   in 1990  
Average Barometer   30.04   30.01   29.91   +00.13   30.18   in 2002   29.60   in 1972  
Average Wind   5.8   4.0   5.9   -0.1   11.3   in 1985   2.2   in 1989  
Direction   SSE   SE   SSW       S SW
High Wind Gust   14   18   20   -6   34   in 1981   12   in 1974  
Direction   N   S   SSW       WNW N
Maximum Water Temp   66.9   65.5   65.8   +1.1   71.1   in 2007   61.2   in 2009  
Minimum Water Temp   64.2   63.3   62.3   +1.9   67.2   in 2015   57.6   in 2004  
Average Water Temp   65.6   64.4   64.1   +1.5   68.5   in 2015   60.1   in 2005  
Sunrise/ AM Twilight   5:11:35 AM   4:38:24 AM            
Sunset / PM Twilight   8:22:57 PM   8:57:02 PM            
Length Of Day   15:11:22                          
Special Conditions   Dense Fog                              
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