Portsmouth Rhode Island Weather Almanac
Thursday, April 18, 2019
Partly Cloudy early then Cloudy, Light Rain and Fog, Windy, Seasonal Temperatures
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    April 18, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   54   53   56   -2   80   in 1976   39   in 1921  
Minimum Temperature   39   34   40   -1   53   in 2002   29   in 2003  
Average Temperature   47   44   48   -1   67   in 1976   36   in 1921  
Precipitation   .05   T   .15   -.10   2.05   in 1967            
One Hour   .02   T           .33   in 1967            
Snow   0.0   0.0   0.0   +0.0   T   in 2001            
Snow Depth   0   0           T   in 2005            
HDD   18   21   17   +1   29   in 1921   0   in 1976  
CDD   0   0   0   +0   2   in 1976            
Maximum Dew Point   52   36   43   +9   59   in 2002   23   in 1990  
Minimum Dew Point   36   28   30   +7   50   in 2002   11   in 1985  
Average  Dew Point   44   32   36   +8   55   in 2002   20   in 1990  
Maximum Humidity   96%   88%   86%   +10%   100%   in 2001   58%   in 2008  
Minimum Humidity   73%   47%   45%   +28%   97%   in 1987   14%   in 2005  
Average Humidity   85%   68%   65%   +19%   99%   in 1987   39%   in 1950  
Maximum Barometer   30.29   29.78   30.06   +00.23   30.60   in 2014   29.49   in 1997  
Minimum Barometer   29.96   29.66   29.81   +00.15   30.50   in 2003   28.99   in 1997  
Average Barometer   30.13   29.72   29.93   +00.19   30.54   in 2003   29.24   in 1997  
Average Wind   10.8   9.4   7.5   +3.3   20.2   in 1986   3.5   in 1978  
Direction   SE   W   WNW       NNE         SSE        
High Wind Gust   30   28   25   +5   47   in 1986   13   in 1953  
Direction   S   W   WNW       NNE         SE        
High Heat Index                                      
Wind Chill   37   26   34   +3             19   in 1971  
Maximum Water Temp   45.1   43.0   47.5   -2.4   55.4   in 2012   43.0   in 2018  
Minimum Water Temp   42.3   41.2   44.6   -2.3   49.8   in 2012   40.1   in 2003  
Average Water Temp   43.7   42.1   46.1   -2.4   52.6   in 2012   41.7   in 2003  
Sunrise/ AM Twilight   5:59:42 AM   5:30:44 AM            
Sunset / PM Twilight   7:29:14 PM   7:58:11 PM            
Length Of Day   13:29:32                          
Special Conditions   Fog                                  
Comments      
    April 18, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   54.9   48.2   53.3   +1.6   61.9   in 1945   45.7   in 2007  
Avg Minimum Temperature   38.8   34.4   37.2   +1.7   42.7   in 2010   30.9   in 1943  
Average Temperature   46.9   41.3   45.5   +1.4   52.1   in 1945   39.1   in 1907  
Total Precipitation   2.91   1.98   2.83   +.08   6.74   in 1983   .08   in 1966  
Total Snow   0.0   3.6   1.0   -1.0   9.6   in 1996   0.0   in 2019  
Total HDD   322   422   349   -27   463   in 1907   227   in 1945  
Total CDD   0   0   0   +0   6   in 2002   0   in    
Avg Maximum Dew Point   43.1   39.4   40.2   +3.0   46.6   in 2010   31.1   in 1975  
Avg Minimum Dew Point   27.8   24.0   26.9   +0.8   35.7   in 2010   16.6   in 1992  
Average  Dew Point   35.4   31.9   33.6   +1.9   41.1   in 2010   24.3   in 1992  
    April 18, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   15.42   18.37   15.20   +.22   26.01   in 1983   6.69   in 2012  
Total Snow (since Jul 1 18)   21.1   45.6   31.8   -10.7   84.1   in 1996   5.0   in 1998  
Total HDD (since Jul 1 18)   5063   4906   5126   -63   6059   in 1918   4121   in 2012  
Total CDD (since Jan 1)   0   0   0   +0   6   in 2002   0   in    
                             
Hour-by-Hour Weather For April 18, 2019  
Climate Weather for April 18  
Weather History For April 18  
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