Portsmouth Rhode Island Weather Almanac
Tuesday, January 1, 2019
Cloudy, Heavy Rain and Fog early, Partly Cloudy Day to Clear PM, Windy and Very Warm
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    January 1, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   57   14   39   +18   59   in 1966   12   in 1918  
Minimum Temperature   35   3   24   +11   43   in 1979   -2   in 1918  
Average Temperature   46   9   32   +14   51   in 1966   5   in 1918  
Precipitation   .73   .00   .12   +.61   1.56   in 2007            
One Hour   .26   .00           .39   in 1995            
Snow   0.0   0.0   0.2   -0.2   6.2   in 1938            
Snow Depth   0   1           13   in 1948            
HDD   19   56   33   -14   60   in 1918   14   in 1966  
CDD   0   0   0   +0   0   in              
Maximum Dew Point   54   -1   31   +23   54   in 2019   -1   in 2018  
Minimum Dew Point   27   -6   14   +13   43   in 1979   -13   in 1999  
Average  Dew Point   41   -4   23   +19   47   in 1979   -4   in 2018  
Maximum Humidity   100%   69%   85%   +15%   100%   in 2019   55%   in 1965  
Minimum Humidity   53%   41%   54%   -1%   93%   in 1979   23%   in 1992  
Average Humidity   77%   55%   69%   +7%   97%   in 1979   44%   in 1965  
Maximum Barometer   30.10   30.32   30.19   -00.09   30.87   in 1947   29.62   in 1977  
Minimum Barometer   29.54   30.21   29.82   -00.28   30.45   in 1984   29.08   in 1949  
Average Barometer   29.82   30.27   30.00   -00.18   30.52   in 1991   29.43   in 1977  
Average Wind   13.7   13.3   8.4   +5.3   20.5   in 1969   1.6   in 1981  
Direction   WNW   NW   NW       WNW         N        
High Wind Gust   35   32   27   +8   52   in 1969   10   in 1981  
Direction   NW   WNW   NW       WNW         N        
High Heat Index                                      
Wind Chill   29   -16   14   +15             -16   in 2018  
Maximum Water Temp   42.6   36.0   42.3   +0.3   50.4   in 2007   36.0   in 2018  
Minimum Water Temp   40.6   32.5   39.7   +0.9   47.8   in 2007   32.4   in 2013  
Average Water Temp   41.6   34.3   41.0   +0.6   49.1   in 2007   34.3   in 2018  
Sunrise/ AM Twilight   7:11:39 AM   6:40:32 AM            
Sunset / PM Twilight   4:26:35 PM   4:57:42 PM            
Length Of Day   9:14:56                          
Special Conditions   Fog                                  
Comments      
    January 1, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   57.0   14.0   39.0   +18.0   59.0   in 1966   12.0   in 1918  
Avg Minimum Temperature   35.0   3.0   24.0   +11.0   43.0   in 1979   -2.0   in 1918  
Average Temperature   46.0   9.0   32.0   +14.0   51.0   in 1966   5.0   in 1918  
Total Precipitation   .73   .00   .12   +.61   1.56   in 2007   .00   in 2018  
Total Snow   0.0   0.0   0.2   -0.2   6.2   in 1938   0.0   in 2019  
Total HDD   19   56   33   -14   60   in 1918   14   in 1966  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   54.0   -1.0   30.8   +23.2   54.0   in 2019   -1.0   in 2018  
Avg Minimum Dew Point   27.0   -6.0   14.2   +12.8   43.0   in 1979   -13.0   in 1999  
Average  Dew Point   41.0   -4.0   22.5   +18.5   47.0   in 1979   -4.0   in 2018  
    January 1, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   .73   .00   .12   +.61   1.56   in 2007   .00   in 2018  
Total Snow (since Jul 1 18)   4.4   8.1   8.8   -4.4   24.0   in 1899   T   in 2000  
Total HDD (since Jul 1 18)   1948   1861   1984   -36   2507   in 1918   1349   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For January 1, 2019  
Climate Weather for January 1  
Weather History For January 1  
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