Portsmouth Rhode Island Weather Almanac
Thursday, January 31, 2019
Clear, Dry, Windy and Bitter Cold
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    January 31, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   18   35   37   -19   56   in 1988   16   in 1935  
Minimum Temperature   4   17   22   -18   40   in 2016   -5   in 1920  
Average Temperature   11   26   30   -19   48   in 1947   8   in 1935  
Precipitation   .00   .00   .11   -.11   1.32   in 1984            
One Hour   .00   .00           .27   in 2013            
Snow   0.0   0.0   0.3   -0.3   10.3   in 1898            
Snow Depth   T   5           23   in 2005            
HDD   54   39   35   +19   57   in 1935   17   in 1947  
CDD   0       0   +0   0   in              
Maximum Dew Point   -4   28   25   -29   54   in 2013   -5   in 1980  
Minimum Dew Point   -11   7   9   -20   34   in 2016   -15   in 1962  
Average  Dew Point   -8   18   17   -25   38   in 2016   -9   in 1980  
Maximum Humidity   53%   77%   80%   -27%   100%   in 2006   42%   in 1980  
Minimum Humidity   30%   46%   48%   -18%   85%   in 2006   21%   in 1981  
Average Humidity   42%   62%   64%   -23%   93%   in 2006   32%   in 1981  
Maximum Barometer   30.36   30.25   30.15   +00.21   30.86   in 1999   29.50   in 1979  
Minimum Barometer   30.12   30.03   29.82   +00.30   30.64   in 1999   28.93   in 1966  
Average Barometer   30.24   30.14   29.98   +00.26   30.75   in 1999   29.23   in 1966  
Average Wind   10.3   9.7   8.9   +1.4   22.4   in 1966   2.9   in 1990  
Direction   WNW   SSW   NW       W         SW        
High Wind Gust   30   28   26   +4   55   in 1966   12   in 1990  
Direction   #N/A   NNW   NW       WSW         S        
High Heat Index                                      
Wind Chill   -12   5   10   -22             -13   in 1962  
Maximum Water Temp   34.0   35.9   38.5   -4.5   44.8   in 2007   32.3   in 2004  
Minimum Water Temp   30.7   34.2   36.4   -5.7   42.4   in 2013   29.8   in 2004  
Average Water Temp   32.4   35.1   37.2   -4.8   42.5   in 2012   31.1   in 2004  
Sunrise/ AM Twilight   6:57:04 AM   6:27:50 AM            
Sunset / PM Twilight   5:00:27 PM   5:29:41 PM            
Length Of Day   10:03:23                          
Special Conditions   None                                  
Comments   Midnight temp was 8°, breaking record of 9° set back in 1952  
    January 31, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   37.9   36.2   37.3   +0.6   45.7   in 1913   27.7   in 2004  
Avg Minimum Temperature   22.4   22.7   22.6   -0.2   31.9   in 1932   13.1   in 1982  
Average Temperature   30.2   29.5   30.0   +0.2   38.3   in 1932   21.3   in 2004  
Total Precipitation   5.56   4.99   3.69   +1.87   12.04   in 1979   .78   in 1955  
Total Snow   0.9   19.7   8.4   -7.5   33.8   in 2005   0.1   in 1934  
Total HDD   1075   1092   1077   -2   1346   in 2004   818   in 1932  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   30.0   28.5   27.9   +2.0   38.5   in 2006   14.8   in 1981  
Avg Minimum Dew Point   11.3   14.0   11.5   -0.3   23.3   in 2006   -1.4   in 1981  
Average  Dew Point   20.6   21.3   19.7   +0.9   30.9   in 2006   6.7   in 1981  
    January 31, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   5.56   4.99   3.69   +1.87   12.04   in 1979   .78   in 1955  
Total Snow (since Jul 1 18)   5.3   27.8   17.0   -11.7   46.0   in 2005   0.8   in 2007  
Total HDD (since Jul 1 18)   3004   2897   3028   -24   3770   in 1918   2291   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For January 31, 2019  
Climate Weather for January 31  
Weather History For January 31  
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