Portsmouth Rhode Island Weather Almanac
Tuesday, February 12, 2019
Partly Cloudy early, Mostly Cloudy Day and Snow/Fog, Changeover to Freezing Rain and Rain PM, Cooler
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2019  
    February 12, 2019     Record Record
Observed Daily Data   Observed   2018   Normal   Depart   Highest Lowest
Maximum Temperature   38   51   39   -1   54   in 1999   8   in 1914  
Minimum Temperature   20   31   24   -4   41   in 2009   -6   in 1914  
Average Temperature   29   41   32   -3   48   in 1999   1   in 1914  
Precipitation   .71   .10   .13   +.58   2.66   in 1988            
One Hour   .10   .09           .57   in 1988            
Snow   2.1   0.0   0.3   +1.8   9.8   in 1897            
Snow Depth   0   0           26   in 1978            
HDD   36   24   33   +3   64   in 1914   17   in 1999  
CDD   0       0   +0   0   in              
Maximum Dew Point   37   50   28   +9   52   in 1999   -9   in 1979  
Minimum Dew Point   2   21   12   -10   35   in 1998   -21   in 1967  
Average  Dew Point   20   36   32   -12   43   in 1999   -14   in 1979  
Maximum Humidity   96%   100%   81%   +15%   100%   in 1963   50%   in 1991  
Minimum Humidity   32%   51%   48%   -16%   90%   in 1963   22%   in 1987  
Average Humidity   64%   76%   64%   -0%   95%   in 1963   38%   in 1991  
Maximum Barometer   30.47   30.60   30.14   +00.33   30.86   in 1938   29.53   in 2009  
Minimum Barometer   29.74   29.89   29.76   -00.02   30.42   in 2001   29.12   in 1955  
Average Barometer   30.11   30.25   29.96   +00.15   30.58   in 2001   29.35   in 2009  
Average Wind   10.3   7.8   8.9   +1.4   21.5   in 1952   2.9   in 1965  
Direction   E   NNW   WNW       WNW         SSE        
High Wind Gust   31   24   28   +3   55   in 1952   15   in 1987  
Direction   E   NNW   WNW       WNW         WNW        
High Heat Index                                      
Wind Chill   10   23   8   +2             -19   in 1979  
Maximum Water Temp   36.9   37.2   37.8   -0.9   43.7   in 2006   34.4   in 2015  
Minimum Water Temp   33.6   36.5   36.0   -2.4   39.9   in 1998   33.2   in 2014  
Average Water Temp   35.3   36.9   36.9   -1.7   41.3   in 2012   33.9   in 2015  
Sunrise/ AM Twilight   6:44:33 AM   6:16:02 AM            
Sunset / PM Twilight   5:14:21 PM   5:42:51 PM            
Length Of Day   10:29:48                          
Special Conditions   Dense Fog, Sleet, Freezing Rain                      
Comments      
    February 12, 2019     Record Record
Month-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
 Avg Maximum Temperature   40.6   42.5   38.0   +2.6   46.0   in 1991   23.4   in 1899  
Avg Minimum Temperature   27.0   26.0   23.0   +4.0   30.9   in 1960   9.1   in 1934  
Average Temperature   33.8   34.3   31.0   +2.8   37.4   in 1960   16.9   in 1934  
Total Precipitation   1.16   3.56   1.43   -.27   4.98   in 1970   T   in 1912  
Total Snow   2.1   0.4   3.6   -1.5   26.3   in 1978   0.0   in 1991  
Total HDD   370   365   407   -37   575   in 1934   329   in 1960  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   30.2   39.3   26.9   +3.3   39.3   in 2018   7.2   in 1979  
Avg Minimum Dew Point   15.1   17.1   10.8   +4.3   23.3   in 1998   -4.8   in 1979  
Average  Dew Point   22.6   28.2   18.8   +3.8   29.0   in 2008   1.2   in 1979  
    February 12, 2019     Record Record
Year-to-Date Summary   Observed   2018   Normal Depart Highest Lowest
Total Precipitation   6.72   8.55   5.12   +1.60   12.38   in 1979   1.59   in 1980  
Total Snow (since Jul 1 18)   7.4   28.2   20.6   -13.2   51.0   in 1996   2.8   in 1980  
Total HDD (since Jul 1 18)   3374   3262   3435   -61   4281   in 1918   2661   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For February 12, 2019  
Climate Weather for February 12  
Weather History For February 12  
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