Portsmouth Rhode Island Weather Almanac
Friday, June 12, 2020
Dense Fog early then Partly Cloudy, Light Winds and Warmer
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    June 12, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   78   74   73   +5   88   in 1933   56   in 2000  
Minimum Temperature   61   52   56   +5   68   in 1973   42   in 1980  
Average Temperature   70   63   65   +5   75   in 2017   54   in 2000  
Precipitation   .00   .00   .12   -.12   2.18   in 1905            
One Hour   .00   .00           .63   in 2001            
Snow   0.0   0.0   0.0   +0.0   0.0   in              
Snow Depth   0   0           43994   in            
HDD   0   2   2   -2   11   in 2000   0   in 2020  
CDD   5   0   2   +3   10   in 2017   0   in 2019  
Maximum Dew Point   68   54   61   +7   71   in 1973   44   in 1950  
Minimum Dew Point   57   46   51   +6   63   in 1996   34   in 1972  
Average  Dew Point   63   50   56   +7   67   in 1996   41   in 1950  
Maximum Humidity   97%   83%   91%   +6%   100%   in 2003   60%   in 1951  
Minimum Humidity   65%   39%   57%   +8%   93%   in 1986   28%   in 1989  
Average Humidity   81%   61%   74%   +7%   97%   in 1986   46%   in 1989  
Maximum Barometer   30.09   30.20   30.02   +00.07   30.37   in 1999   29.47   in 1963  
Minimum Barometer   29.98   30.03   29.81   +00.17   30.26   in 1999   29.17   in 1985  
Average Barometer   30.04   30.12   29.92   +00.12   30.32   in 1999   29.43   in 1963  
Average Wind   4.0   6.5   6.3   -2.3   11.8   in 1979   2.3   in 1996  
Direction   SSE   S   N       WNW         SSW        
High Wind Gust   22   21   22   -0   50   in 1903   12   in 2003  
Direction   SW   S   N       SE         SSW        
High Heat Index   79   74   72   +7   92   in 2017            
Wind Chill                             #N/A   in #N/A  
Maximum Water Temp   58.6   62.8   62.8   -4.2   68.0   in 2007   58.3   in 2003  
Minimum Water Temp   54.5   59.5   59.4   -4.9   65.1   in 2007   53.6   in 2006  
Average Water Temp   56.6   61.2   61.1   -4.5   66.6   in 2007   56.6   in 2020  
Sunrise/ AM Twilight   5:10:48 AM   4:36:58 AM            
Sunset / PM Twilight   8:19:41 PM   8:53:30 PM            
Length Of Day   15:08:53                          
Special Conditions   Dense Fog                              
Comments      
    June 12, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   74.0   73.3   71.3   +2.7   79.3   in 1925   60.5   in 1907  
Avg Minimum Temperature   56.1   54.9   54.4   +1.7   60.5   in 2008   46.9   in 1907  
Average Temperature   65.0   64.1   62.7   +2.4   69.2   in 1925   53.7   in 1907  
Total Precipitation   1.16   1.81   1.52   -.36   6.84   in 1982   T   in 1949  
Total Snow   0.0   0.0   0.0   +0.0   0.0   in     0.0   in    
Total HDD   22   18   36   -14   134   in 1907   2   in 1936  
Total CDD   26   10   15   +11   67   in 2008   0   in 2003  
Avg Maximum Dew Point   61.6   60.8   59.1   +2.5   65.1   in 2008   48.4   in 1988  
Avg Minimum Dew Point   52.4   49.1   49.4   +3.0   55.6   in 2005   39.9   in 1988  
Average  Dew Point   57.0   55.0   54.3   +2.7   60.2   in 2008   44.2   in 1988  
    June 12, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   20.37   23.72   22.02   -1.65   36.73   in 1983   12.64   in 1957  
Total Snow (since Jul 1 19)   12.9   21.1   32.1   -19.2   84.1   in 1996   5.0   in 1998  
Total HDD (since Jul 1 19)   5114   5508   5608   -494   6600   in 1905   4526   in 2012  
Total CDD (since Jan 1)   34   20   24   +10   76   in 1991   0   in 2003  
                             
Hour-by-Hour Weather For June 12, 2020  
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