Portsmouth Rhode Island Weather Almanac  
Wednesday, June 23, 2021  
Mostly Cloudy early, Partly Cloudy Day to Clear PM and Cooler  
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    June 23, 2021   Record   Record  
Observed Daily Data   2021   2020   Norm   Depart   Highest   Lowest  
Maximum Temperature   72   78   76   -4   90   in 1983   56   in 1903  
Minimum Temperature   56   66   60   -4   68   in 2010   50   in 1992  
Average Temperature   64   72   68   -4   77   in 1983   54   in 1903  
 Month Avg Max Temperature   76.6   75.8   72.7   +3.8   78.1   in 1957   66.1   in 2003  
Month Avg Min Temperature   58.8   57.5   56.7   +2.1   60.0   in 2001   51.1   in 1907  
Month Average Temperature   68.0   66.9   64.8   +3.2   68.4   in 1925   59.0   in 1907  
HDD   1   0   1   +0   11   in 1903   0   in 2020  
Month HDD   17   28   46   -29   159   in 1907   5   in 1899  
Season HDD   5062   5120   5474   -412   6619   in 1905   4549   in 2012  
CDD   0   7   4   -4   12   in 1983   0   in    
Month CDD   85   72   48   +37   100   in 1949   2   in 2003  
Year CDD   102   80   60   +22   116   in 2001   2   in 2003  
Maximum Dew Point   60   72   65   -5   73   in 1988   49   in 1963  
Minimum Dew Point   48   64   56   -8   66   in 2010   35   in 1963  
Average  Dew Point   54   68   61   -7   69   in 2010   42   in 1963  
 Month Avg Max Dew Point   65.1   63.2   61.8   +3.3   65.1   in 2021   54.3   in 1965  
Month Avg Min Dew Point   54.3   53.5   52.0   +2.3   56.0   in 2010   43.2   in 1958  
Month Average Dew Point   59.7   58.4   56.8   +2.8   60.3   in 2010   49.2   in 1958  
Precipitation   .00   .00   .12   -.12   .79   in 1959            
One Hour   .00   .00           .63   in 1959            
Hourly Rate   .00   .00           3.27   in 2015            
Month Precipitation   1.89   1.16   2.73   -.84   8.93   in 1982   .01   in 1949  
Year Precipitation   18.89   20.37   21.77   -2.88   38.25   in 1998   12.67   in 1957  
Snow   0.0   0.0   #####   #####   0.0   in              
Snow Depth   0   0           44005   in              
Month Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in    
Season Snow   27.7   12.9   33.5   -5.8   84.1   in 1996   5.0   in 1998  
    June 23, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   96%   96%   91%   +5%   100%   in 2017   56%   in 1963  
Minimum Humidity   46%   78%   56%   -10%   92%   in 1951   20%   in 1993  
Average Humidity   71%   87%   74%   -3%   96%   in 1951   39%   in 1993  
Maximum Barometer   30.30   29.91   30.01   +00.29   30.33   in 2002   29.72   in 1974  
Minimum Barometer   29.84   29.76   29.80   +00.04   30.08   in 1976   29.38   in 1990  
Average Barometer   30.07   29.84   29.91   +00.16   30.18   in 2002   29.60   in 1972  
Average Wind   7.0   4.7   6.0   +1.0   11.3   in 1985   2.2   in 1989  
Direction   NW   S   SSW       S         SW        
High Wind Gust   21   17   20   +1   34   in 1981   12   in 1974  
Direction   NNW   S   SSW       WNW         N        
High Heat Index   72   82   77   -5   90   in 1983            
Low Wind Chill                                      
Maximum Water Temp   65.7   62.4   65.8   -0.1   71.1   in 2007   61.2   in 2009  
Minimum Water Temp   62.4   59.5   62.2   +0.2   67.2   in 2015   57.6   in 2004  
Average Water Temp   64.1   61.0   64.0   +0.1   68.5   in 2015   60.1   in 2005  
Sunrise/ AM Twilight   5:12:22 AM   4:38:24 AM            
Sunset / PM Twilight   8:23:05 PM   8:57:02 PM            
Length Of Day   15:10:43                          
Special Conditions   None                              
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Hour-by-Hour Weather For June 23, 2021            
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