Portsmouth Rhode Island Weather Almanac
Saturday, January 12, 2019
Partly Cloudy to Clear PM, Contined Dry, Windy and Cold
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    January 12, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   30   56   38   -8   57   in 1975   14   in 1982  
Minimum Temperature   15   44   23   -8   46   in 2017   -4   in 1982  
Average Temperature   23   50   30   -7   50   in 2018   5   in 1982  
Precipitation   .00   1.69   .12   -.12   1.69   in 2018            
One Hour   .00   .46           .46   in 2018            
Snow   0.0   0.0   0.3   -0.3   8.2   in 2011            
Snow Depth   0   5           21   in 1996            
HDD   42   15   34   +8   60   in 1982   15   in 2018  
CDD   0       0   +0   0   in              
Maximum Dew Point   10   53   29   -19   54   in 1980   -10   in 1981  
Minimum Dew Point   3   43   12   -9   44   in 2017   -20   in 1981  
Average  Dew Point   7   48   20   -13   48   in 2018   -15   in 1981  
Maximum Humidity   60%   100%   82%   -22%   100%   in 2018   43%   in 1968  
Minimum Humidity   37%   97%   54%   -17%   97%   in 2018   20%   in 1992  
Average Humidity   49%   99%   68%   -19%   99%   in 2018   34%   in 1968  
Maximum Barometer   30.50   30.24   30.19   +00.31   30.86   in 1984   29.60   in 1990  
Minimum Barometer   30.35   29.65   29.83   +00.52   30.43   in 1968   28.90   in 1987  
Average Barometer   30.43   29.95   30.01   +00.42   30.55   in 1984   29.32   in 1987  
Average Wind   11.1   13.0   8.1   +3.0   16.4   in 2011   2.1   in 1955  
Direction   NW   SSE   NW       W         NNW        
High Wind Gust   22   38   26   -4   51   in 1986   7   in 1993  
Direction   WNW   SSE   NW       SW         ENE        
High Heat Index                                      
Wind Chill   3   40   12   -9             -29   in 1982  
Maximum Water Temp   36.3   38.2   41.3   -5.0   49.3   in 2012   36.3   in 2019  
Minimum Water Temp   33.6   34.8   39.1   -5.5   45.6   in 2012   33.6   in 2019  
Average Water Temp   35.0   36.5   40.1   -5.1   47.5   in 2012   35.0   in 2019  
Sunrise/ AM Twilight   7:10:06 AM   6:39:32 AM            
Sunset / PM Twilight   4:37:29 PM   5:08:03 PM            
Length Of Day   9:27:23                          
Special Conditions   None                                  
Comments      
    January 12, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   40.9   31.3   38.3   +2.6   50.3   in 2000   23.8   in 1981  
Avg Minimum Temperature   27.3   17.6   23.9   +3.4   36.9   in 2007   6.7   in 1981  
Average Temperature   34.1   24.4   30.8   +3.4   43.0   in 2007   15.2   in 1981  
Total Precipitation   1.74   2.34   1.44   +.30   4.52   in 1979   .09   in 1984  
Total Snow   T   12.6   2.7   -2.7   25.8   in 1996   0.0   in 2007  
Total HDD   368   483   402   -34   594   in 1981   262   in 2007  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   33.4   23.1   29.7   +3.7   43.7   in 2000   10.6   in 1981  
Avg Minimum Dew Point   15.8   8.9   13.1   +2.7   27.7   in 1998   -10.1   in 1981  
Average  Dew Point   24.6   16.0   21.4   +3.2   34.7   in 2007   0.3   in 1981  
    January 12, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   1.74   2.34   1.44   +.30   4.52   in 1979   .09   in 1984  
Total Snow (since Jul 1 18)   4.4   20.7   11.3   -6.9   41.6   in 1996   T   in 2000  
Total HDD (since Jul 1 18)   2297   2288   2353   -56   2970   in 1918   1678   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For January 12, 2019  
Climate Weather for January 12  
Weather History For January 12  
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