Portsmouth Rhode Island Weather Almanac
Friday, January 18, 2019
Cloudy early then Mostly Cloudy, Light Winds and Warmer
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    January 18, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   39   34   37   +2   58   in 1990   11   in 1982  
Minimum Temperature   27   21   22   +5   46   in 1915   -9   in 1982  
Average Temperature   33   28   30   +3   50   in 1990   1   in 1982  
Precipitation   .00   .00   .12   -.12   2.05   in 1915            
One Hour   .00   .00           .47   in 1994            
Snow   0.0   0.0   0.3   -0.3   6.3   in 2009            
Snow Depth   0   T           13   in 1912            
HDD   32   37   36   -4   64   in 1982   15   in 1990  
CDD   0       0   +0   0   in              
Maximum Dew Point   34   30   28   +7   54   in 2006   -9   in 1977  
Minimum Dew Point   17   15   11   +6   35   in 2017   -24   in 1982  
Average  Dew Point   26   23   19   +7   41   in 1999   -15   in 1982  
Maximum Humidity   90%   93%   84%   +6%   100%   in 2011   50%   in 1977  
Minimum Humidity   65%   53%   54%   +11%   94%   in 2017   29%   in 2013  
Average Humidity   78%   73%   69%   +8%   96%   in 2017   42%   in 1962  
Maximum Barometer   30.28   30.05   30.14   +00.14   30.74   in 2007   29.54   in 1958  
Minimum Barometer   30.03   29.84   29.78   +00.25   30.30   in 1962   29.25   in 1926  
Average Barometer   30.16   29.95   29.96   +00.20   30.43   in 1974   29.42   in 1958  
Average Wind   5.0   7.6   8.4   -3.4   16.6   in 2006   1.6   in 1965  
Direction   E   NW   NW       SSE         W        
High Wind Gust   14   21   27   -13   55   in 1999   12   in 1985  
Direction   ENE   NW   NW       S         NW        
High Heat Index                                      
Wind Chill   19   12   9   +10             -31   in 1982  
Maximum Water Temp   40.6   36.0   40.6   -0.0   48.2   in 2007   36.0   in 2018  
Minimum Water Temp   35.8   33.6   37.5   -1.7   43.2   in 2007   33.6   in 2018  
Average Water Temp   38.2   34.8   39.0   -0.8   45.7   in 2007   34.8   in 2018  
Sunrise/ AM Twilight   7:07:20 AM   6:37:09 AM            
Sunset / PM Twilight   4:44:23 PM   5:14:33 PM            
Length Of Day   9:37:03                          
Special Conditions   None                                  
Comments      
    January 18, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   38.7   32.4   38.0   +0.7   46.9   in 2007   24.7   in 1981  
Avg Minimum Temperature   25.4   18.8   23.5   +1.9   33.4   in 2007   8.1   in 1981  
Average Temperature   32.0   25.6   30.5   +1.5   40.2   in 2007   16.4   in 1981  
Total Precipitation   1.74   3.36   2.16   -.42   7.08   in 1979   .28   in 1984  
Total Snow   T   13.2   4.5   -4.5   25.8   in 1996   0.0   in 2007  
Total HDD   591   702   612   -21   870   in 1981   445   in 2007  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   30.4   25.2   29.1   +1.2   41.9   in 2007   11.8   in 1981  
Avg Minimum Dew Point   14.2   10.1   12.6   +1.6   24.4   in 2006   -7.4   in 1981  
Average  Dew Point   22.3   17.6   20.9   +1.4   32.6   in 2007   2.2   in 1981  
    January 18, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   1.74   3.36   2.16   -.42   7.08   in 1979   .28   in 1984  
Total Snow (since Jul 1 18)   4.4   21.3   13.1   -8.7   41.6   in 1996   0.2   in 1914  
Total HDD (since Jul 1 18)   2520   2507   2563   -43   3201   in 1981   1871   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For January 18, 2019  
Climate Weather for January 18  
Weather History For January 18  
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