Portsmouth Rhode Island Weather Almanac
Friday, April 17, 2020
Clear early, Partly Cloudy Day to Mostly Cloudy and Light Rain PM, Windy and Continued Cold
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    April 17, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   50   61   56   -6   86   in 1976   41   in 2003  
Minimum Temperature   34   39   40   -6   56   in 2002   24   in 1908  
Average Temperature   42   50   48   -6   71   in 2002   34   in 1908  
Precipitation   .06   .00   .15   -.09   2.33   in 1954            
One Hour   .06   .00           .53   in 1954            
Snow   0.0   0.0   0.0   +0.0   T   in 1932            
Snow Depth   0   0           1   in 1992            
HDD   23   15   17   +6   31   in 1908   0   in 2012  
CDD   0   0   0   +0   6   in 2002            
Maximum Dew Point   37   38   42   -5   63   in 1976   18   in 1980  
Minimum Dew Point   22   26   29   -7   50   in 2002   3   in 1985  
Average  Dew Point   30   32   36   -6   56   in 2002   14   in 1980  
Maximum Humidity   89%   82%   84%   +5%   100%   in 2001   47%   in 1985  
Minimum Humidity   39%   26%   46%   -7%   98%   in 1987   13%   in 2012  
Average Humidity   64%   54%   65%   -1%   99%   in 1987   32%   in 1985  
Maximum Barometer   30.24   30.28   30.05   +00.19   30.74   in 2014   29.50   in 2007  
Minimum Barometer   30.02   30.02   29.79   +00.23   30.58   in 2014   28.92   in 1929  
Average Barometer   30.13   30.15   29.92   +00.21   30.66   in 2014   29.40   in 2007  
Average Wind   10.7   7.5   8.2   +2.5   15.1   in 1986   2.7   in 2005  
Direction   W   S   S       NE         S        
High Wind Gust   28   21   26   +2   52   in 1954   12   in 2001  
Direction   SSW   SSW   S       SSW         S        
High Heat Index                                      
Wind Chill   25   38   33   -8             17   in 2003  
Maximum Water Temp   42.8   45.9   47.0   -4.2   54.0   in 2012   41.3   in 2003  
Minimum Water Temp   40.1   41.9   44.2   -4.1   49.6   in 2012   39.8   in 2003  
Average Water Temp   41.5   43.9   45.6   -4.2   51.8   in 2012   40.6   in 2003  
Sunrise/ AM Twilight   6:00:04 AM   5:31:08 AM            
Sunset / PM Twilight   7:28:58 PM   7:57:54 PM            
Length Of Day   13:26:55                          
Special Conditions   None                                  
Comments      
    April 17, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   53.1   54.9   53.2   -0.1   61.8   in 1945   45.4   in 1907  
Avg Minimum Temperature   38.5   38.8   37.0   +1.5   42.9   in 2010   30.8   in 1982  
Average Temperature   45.8   46.9   45.4   +0.4   52.0   in 1945   38.9   in 1907  
Total Precipitation   2.99   2.86   2.68   +.31   6.74   in 1983   .04   in 1963  
Total Snow   0.0   0.0   1.0   -1.0   9.6   in 1996   0.0   in 2019  
Total HDD   323   304   332   -9   441   in 1907   217   in 1945  
Total CDD   0   0   0   +0   6   in 2002   0   in      
Avg Maximum Dew Point   41.8   42.6   40.0   +1.8   46.9   in 2010   30.1   in 1975  
Avg Minimum Dew Point   28.9   27.3   26.8   +2.1   35.7   in 2010   15.5   in 1992  
Average  Dew Point   35.4   34.9   33.4   +2.0   41.3   in 2010   23.5   in 1992  
    April 17, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   13.75   15.37   15.05   -1.30   26.01   in 1983   6.69   in 2012  
Total Snow (since Jul 1 18)   12.9   21.1   31.8   -18.9   84.1   in 1996   5.0   in 1998  
Total HDD (since Jul 1 18)   4548   5045   5109   -561   6038   in 1918   4111   in 2012  
Total CDD (since Jan 1)   0   0   0   +0   6   in 2002   0   in    
                             
Hour-by-Hour Weather For April 17, 2020  
Climate Weather for April 17  
Weather History For April 17  
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