Portsmouth Rhode Island Weather Almanac
Monday, January 21, 2019
Partly Cloudy early then Mostly Cloudy, Very Windy/Gusty Winds, Bitter Cold and Wind Chills
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    January 21, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   12   48   36   -24   54   in 1979   12   in 2019  
Minimum Temperature   2   31   22   -20   41   in 1923   2   in 2019  
Average Temperature   7   40   29   -22   46   in 1923   7   in 2019  
Precipitation   .00   .00   .12   -.12   2.05   in 1979            
One Hour   .00   .00           .56   in 1979            
Snow   0.0   0.0   0.3   -0.3   8.6   in 2012            
Snow Depth   0   0           14   in 1961            
HDD   58   25   36   +22   58   in 2019   19   in 1923  
CDD   0       0   +0   0   in              
Maximum Dew Point   5   32   27   -22   53   in 1979   -3   in 1985  
Minimum Dew Point   -6   26   11   -17   36   in 2017   -18   in 1985  
Average  Dew Point   -1   29   19   -20   42   in 1959   -11   in 1985  
Maximum Humidity   74%   81%   81%   -7%   100%   in 2017   46%   in 1980  
Minimum Humidity   58%   51%   51%   +7%   94%   in 1959   22%   in 1989  
Average Humidity   66%   66%   66%   +0%   96%   in 1959   38%   in 1980  
Maximum Barometer   30.19   30.21   30.14   +00.05   30.92   in 1949   29.53   in 1985  
Minimum Barometer   29.57   29.99   29.80   -00.23   30.42   in 1996   28.70   in 1979  
Average Barometer   29.88   30.10   29.97   -00.09   30.54   in 2008   29.15   in 1964  
Average Wind   19.5   2.9   8.7   +10.8   22.5   in 2000   1.3   in 1981  
Direction   WNW   SSW   WNW       NW         S        
High Wind Gust   38   12   27   +11   45   in 1947   10   in 1981  
Direction   NW   N   WNW       W         S        
High Heat Index                                      
Wind Chill   -17   31   8   -25             -19   in 1985  
Maximum Water Temp   38.5   36.3   39.4   -0.9   45.1   in 2007   35.7   in 2003  
Minimum Water Temp   33.8   34.5   36.5   -2.7   40.2   in 2017   32.4   in 2004  
Average Water Temp   36.2   35.4   37.9   -1.7   42.2   in 2007   34.2   in 2003  
Sunrise/ AM Twilight   7:05:28 AM   6:35:30 AM            
Sunset / PM Twilight   4:47:59 PM   5:17:57 PM            
Length Of Day   9:42:31                          
Special Conditions   None                                  
Comments   Record breaking cold temperatures  
    January 21, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   37.7   34.2   37.7   -0.0   45.9   in 1913   26.8   in 1981  
Avg Minimum Temperature   23.8   20.1   23.3   +0.5   32.4   in 1932   9.7   in 1981  
Average Temperature   30.7   27.2   30.3   +0.5   38.5   in 2007   18.2   in 1981  
Total Precipitation   4.05   3.36   2.52   +1.53   9.13   in 1979   .51   in 1984  
Total Snow   0.8   13.2   5.4   -4.6   25.8   in 1996   0.0   in 2007  
Total HDD   717   787   720   -3   976   in 1981   551   in 1937  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   30.0   25.6   28.9   +1.1   39.9   in 2006   12.7   in 1981  
Avg Minimum Dew Point   13.0   11.7   12.3   +0.7   24.6   in 2006   -5.7   in 1981  
Average  Dew Point   21.5   18.6   20.6   +0.9   32.3   in 2006   3.5   in 1981  
    January 21, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   4.05   3.36   2.52   +1.53   9.13   in 1979   .51   in 1984  
Total Snow (since Jul 1 18)   5.2   21.3   14.0   -8.8   41.6   in 1996   0.4   in 2007  
Total HDD (since Jul 1 18)   2646   2592   2671   -25   3333   in 1918   1984   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For January 21, 2019  
Climate Weather for January 21  
Weather History For January 21  
Weather Calendar  
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