Portsmouth Rhode Island Weather Almanac
Sunday, February 17, 2019
Clear early, Partly Cloudy Day to Mostly Cloudy Evening, Seasonal Temperatures
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    February 17, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   37   38   40   -3   60   in 1976   11   in 1922  
Minimum Temperature   24   28   25   -1   39   in 1976   -9   in 1896  
Average Temperature   31   33   32   -1   50   in 1976   4   in 1922  
Precipitation   T   .25   .13   .00   1.85   in 1936            
One Hour   .00   .05           .35   in 1983            
Snow   T   2.2   0.3   -2.2   16.4   in 2003            
Snow Depth   0   0           22   in 2015            
HDD   34   32   33   +1   61   in 1922   15   in 1976  
CDD   0       0   +0   0   in              
Maximum Dew Point   24   33   29   -5   53   in 1990   -13   in 1979  
Minimum Dew Point   11   13   13   -2   34   in 1984   -19   in 1979  
Average  Dew Point   18   23   32   -14   41   in 1976   -16   in 1979  
Maximum Humidity   73%   100%   84%   -11%   100%   in 1954   42%   in 1979  
Minimum Humidity   36%   38%   49%   -13%   90%   in 1954   20%   in 2000  
Average Humidity   55%   69%   67%   -12%   94%   in 1954   35%   in 1989  
Maximum Barometer   30.16   30.42   30.17   -00.01   30.84   in 1989   29.42   in 1958  
Minimum Barometer   29.98   30.04   29.79   +00.19   30.50   in 1989   28.71   in 1902  
Average Barometer   30.07   30.23   29.98   +00.09   30.67   in 1989   29.22   in 1958  
Average Wind   7.3   7.8   8.7   -1.4   20.5   in 2013   2.6   in 1978  
Direction   N   SE   WNW       NW         S        
High Wind Gust   24   23   28   -4   53   in 1902   11   in 1978  
Direction   N   NNW   WNW       NE         SE        
High Heat Index                                      
Wind Chill   11   20   11   -0             -23   in 1979  
Maximum Water Temp   37.0   37.4   38.1   -1.1   43.7   in 2012   32.4   in 2015  
Minimum Water Temp   35.4   36.1   36.4   -1.0   42.4   in 2012   32.0   in 2015  
Average Water Temp   36.2   36.8   37.3   -1.1   43.1   in 2012   32.2   in 2015  
Sunrise/ AM Twilight   6:37:55 AM   6:09:42 AM            
Sunset / PM Twilight   5:20:35 PM   5:48:48 PM            
Length Of Day   10:42:40                          
Special Conditions   None                                  
Comments      
    February 17, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   41.5   42.8   38.5   +3.1   44.8   in 1990   22.4   in 1979  
Avg Minimum Temperature   27.9   27.6   23.6   +4.3   30.2   in 1925   8.0   in 1979  
Average Temperature   34.7   35.2   31.3   +3.4   36.8   in 1925   15.2   in 1979  
Total Precipitation   1.84   4.19   2.08   -.24   5.93   in 1988   .07   in 1912  
Total Snow   2.1   2.6   5.1   -3.0   26.3   in 1978   T   in 2005  
Total HDD   510   501   572   -62   844   in 1979   474   in 1925  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   32.0   39.0   27.4   +4.6   39.0   in 2018   2.9   in 1979  
Avg Minimum Dew Point   16.4   18.5   11.3   +5.2   21.9   in 1984   -8.3   in 1979  
Average  Dew Point   24.2   28.7   19.3   +4.9   29.1   in 1984   -2.7   in 1979  
    February 17, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   7.40   9.18   5.77   +1.63   12.38   in 1979   2.33   in 1980  
Total Snow (since Jul 1 18)   7.4   30.4   22.1   -14.7   61.1   in 1996   3.5   in 1989  
Total HDD (since Jul 1 18)   3514   3398   3600   -86   4436   in 1918   2861   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For February 17, 2019  
Climate Weather for February 17  
Weather History For February 17  
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