Portsmouth Rhode Island Weather Almanac
Thursday, January 17, 2019
Clear Morning, then Partly Cloudy, Very Dry and Cooler
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    January 17, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   31   35   37   -6   58   in 1995   18   in 1971  
Minimum Temperature   21   32   22   -1   41   in 1995   -5   in 1982  
Average Temperature   26   34   30   -4   50   in 1995   11   in 1971  
Precipitation   .00   .12   .12   -.12   2.08   in 1909            
One Hour   .00   .02           .31   in 1950            
Snow   0.0   0.6   0.3   -0.3   9.6   in 1956            
Snow Depth   0   0           13   in 1912            
HDD   39   31   35   +4   54   in 1971   15   in 1995  
CDD   0       0   +0   0   in              
Maximum Dew Point   18   35   28   -10   56   in 1995   -3   in 1971  
Minimum Dew Point   -3   29   11   -14   38   in 1995   -21   in 1982  
Average  Dew Point   8   32   20   -12   47   in 1995   -9   in 1971  
Maximum Humidity   67%   100%   83%   -16%   100%   in 2018   52%   in 1972  
Minimum Humidity   24%   83%   50%   -26%   91%   in 1996   24%   in 2019  
Average Humidity   46%   92%   66%   -21%   96%   in 1996   43%   in 2007  
Maximum Barometer   30.42   30.40   30.15   +00.27   30.76   in 2007   29.33   in 1958  
Minimum Barometer   30.16   30.05   29.84   +00.32   30.29   in 2009   29.08   in 1959  
Average Barometer   30.29   30.23   29.99   +00.30   30.49   in 2007   29.26   in 1958  
Average Wind   7.7   4.5   8.6   -0.9   24.3   in 2000   3.0   in 1978  
Direction   NNW   NNW   WNW       NW         ENE        
High Wind Gust   21   15   27   -6   50   in 2000   12   in 1978  
Direction   NW   SSE   WNW       WNW         ENE        
High Heat Index                                      
Wind Chill   11   27   8   +3             -30   in 1982  
Maximum Water Temp   39.0   36.1   40.1   -1.1   45.3   in 2007   35.8   in 2009  
Minimum Water Temp   34.7   34.2   37.8   -3.1   46.9   in 2006   31.7   in 2004  
Average Water Temp   36.9   35.2   38.8   -2.0   44.5   in 2006   35.2   in 2004  
Sunrise/ AM Twilight   7:07:53 AM   6:37:38 AM            
Sunset / PM Twilight   4:43:12 PM   5:13:26 PM            
Length Of Day   9:35:19                          
Special Conditions   None                                  
Comments      
    January 17, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   38.6   32.4   38.1   +0.6   46.9   in 2007   24.5   in 1981  
Avg Minimum Temperature   25.3   18.7   23.6   +1.7   34.5   in 2007   8.1   in 1981  
Average Temperature   32.0   25.5   30.5   +1.4   40.7   in 2007   16.3   in 1981  
Total Precipitation   1.74   3.36   2.04   -.30   7.01   in 1979   .12   in 1984  
Total Snow   T   13.2   4.2   -4.2   25.8   in 1996   0.0   in 2007  
Total HDD   559   665   576   -17   823   in 1981   411   in 2007  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   30.2   24.9   29.2   +0.9   41.6   in 2007   11.7   in 1981  
Avg Minimum Dew Point   14.0   9.8   12.7   +1.3   24.6   in 2007   -7.3   in 1981  
Average  Dew Point   22.1   17.4   21.0   +1.1   33.1   in 2007   2.2   in 1981  
    January 17, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   1.74   3.36   2.04   -.30   7.01   in 1979   .12   in 1984  
Total Snow (since Jul 1 18)   4.4   21.3   12.8   -8.4   41.6   in 1996   0.2   in 1914  
Total HDD (since Jul 1 18)   2488   2470   2527   -39   3165   in 1918   1832   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For January 17, 2019  
Climate Weather for January 17  
Weather History For January 17  
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