Portsmouth Rhode Island Weather Almanac
Monday, February 17, 2020
Partly Cloudy early then Clear, Continued Warm
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    February 17, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   49   37   40   +9   60   in 1976   11   in 1922  
Minimum Temperature   29   24   25   +4   39   in 1976   -9   in 1896  
Average Temperature   39   31   32   +7   50   in 1976   4   in 1922  
Precipitation   .00   T   .13   -.13   1.85   in 1936        
One Hour   .00   .00           .35   in 1983            
Snow   0.0   T   0.3   -0.3   16.4   in 2003            
Snow Depth   0   0           22   in 2015            
HDD   26   34   33   -7   61   in 1922   15   in 1976  
CDD   0   0   0   +0   0   in              
Maximum Dew Point   30   24   29   +1   53   in 1990   -13   in 1979  
Minimum Dew Point   18   11   13   +5   34   in 1984   -19   in 1979  
Average  Dew Point   24   18   21   +3   41   in 1976   -16   in 1979  
Maximum Humidity   89%   73%   84%   +5%   100%   in 2018   42%   in 1979  
Minimum Humidity   37%   36%   49%   -12%   90%   in 1954   20%   in 2000  
Average Humidity   63%   55%   67%   -4%   94%   in 1954   35%   in 1989  
Maximum Barometer   30.44   30.16   30.17   +00.27   30.84   in 1989   29.42   in 1958  
Minimum Barometer   30.09   29.98   29.79   +00.30   30.50   in 1989   28.71   in 1902  
Average Barometer   30.27   30.07   29.98   +00.29   30.67   in 1989   29.22   in 1958  
Average Wind   5.7   7.3   8.7   -3.0   20.5   in 2013   2.6   in 1978  
Direction   N   N   WNW       NW         S        
High Wind Gust   20   24   28   -8   53   in 1902   11   in 1978  
Direction   WNW   N   WNW       NE         SE        
Wind Chill   23   11   11   +12             -23   in 1979  
Maximum Water Temp   36.3   37.0   38.1   -1.8   43.7   in 2012   32.4   in 2015  
Minimum Water Temp   34.9   35.4   36.4   -1.5   42.4   in 2012   32.0   in 2015  
Average Water Temp   35.6   36.2   37.3   -1.7   43.1   in 2012   32.2   in 2015  
Sunrise/ AM Twilight   6:36:52 AM   6:08:41 AM            
Sunset / PM Twilight   5:21:31 PM   5:49:41 PM            
Length Of Day   10:45:17                          
Special Conditions   None                                  
Comments      
    February 17, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   43.3   41.5   38.5   +4.8   44.8   in 1990   22.4   in 1979  
Avg Minimum Temperature   30.8   27.9   23.6   +7.2   30.8   in 2020   8.0   in 1979  
Average Temperature   37.0   34.7   31.3   +5.7   37.0   in 2020   15.2   in 1979  
Total Precipitation   2.64   1.84   2.08   +.56   5.93   in 1988   .07   in 1912  
Total Snow   0.0   2.1   5.1   -5.1   26.3   in 1978   0.0   in 2020  
Total HDD   469   510   572   -103   844   in 1979   469   in 2020  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   36.2   32.0   27.4   +8.9   39.0   in 2018   2.9   in 1979  
Avg Minimum Dew Point   22.6   16.4   11.3   +11.4   22.6   in 2020   -8.3   in 1979  
Average  Dew Point   29.4   24.2   19.3   +10.1   29.4   in 2020   -2.7   in 1979  
    February 17, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   4.68   7.40   5.77   -1.09   12.38   in 1979   2.33   in 1980  
Total Snow (since Jul 1 19)   12.2   7.4   22.1   -9.9   61.1   in 1996   3.5   in 1989  
Total HDD (since Jul 1 19)   3234   3514   3600   -366   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, 2020  
Climate Weather for February 17  
Weather History For February 17  
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