Portsmouth Rhode Island Weather Almanac
Sunday, December 2, 2018
Cloudy, Moderate Rain, Dense Fog Evening, Windy and Much Warmer
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2018  
    December 2, 2018     Record Record
Observed Daily Data   Observed   2017   Normal   Depart   Highest Lowest
Maximum Temperature   57   45   47   +10   60   in 1982   23   in 1896  
Minimum Temperature   38   33   33   +5   47   in 1895   11   in 1989  
Average Temperature   48   39   40   +8   52   in 1982   20   in 1896  
Precipitation   1.15   .00   .15   +1.00   1.70   in 1981            
One Hour   .23   .00           .38   in 1981            
Snow   0.0   0.0   0.2   -0.2   3.4   in 1894            
Snow Depth   0   0           9   in 1898            
HDD   17   26   25   -8   45   in 1896   13   in 1982  
CDD   0   0   0   +0   0   in              
Maximum Dew Point   57   36   39   +18   59   in 1985   10   in 1971  
Minimum Dew Point   35   27   24   +11   42   in 2015   -5   in 2003  
Average  Dew Point   46   32   32   +15   50   in 2015   8   in 2003  
Maximum Humidity   100%   86%   84%   +16%   100%   in 2018   52%   in 1999  
Minimum Humidity   89%   61%   52%   +37%   96%   in 2015   27%   in 1995  
Average Humidity   95%   74%   68%   +27%   98%   in 2015   41%   in 1999  
Maximum Barometer   30.18   30.32   30.18   +00.00   30.77   in 1986   29.60   in 1969  
Minimum Barometer   29.57   30.24   29.87   -00.30   30.34   in 1973   28.97   in 1974  
Average Barometer   29.88   30.28   30.02   -00.15   30.49   in 2014   29.34   in 1985  
Average Wind   9.7   3.3   7.4   +2.3   16.9   in 2003   0.8   in 1961  
Direction   E   N   W       WNW         NNW        
High Wind Gust   28   13   24   +4   47   in 1946   8   in 1993  
Direction   SC   N   W       NW         ESE        
High Heat Index                                      
Wind Chill   34   29   22   +12             -6   in 1989  
Maximum Water Temp   46.8   50.7   48.9   -2.1   54.3   in 2006   44.8   in 2000  
Minimum Water Temp   43.3   49.1   46.7   -3.4   51.8   in 2001   42.1   in 1997  
Average Water Temp   45.1   49.9   47.8   -2.8   53.0   in 2006   43.5   in 1997  
Sunrise/ AM Twilight   6:53:59 AM   6:23:11 AM            
Sunset / PM Twilight   4:15:59 PM   4:46:47 PM            
Length Of Day   9:22:00                          
Special Conditions   Dense Fog                              
Comments      
    December 2, 2018     Record Record
Month-to-Date Summary   Observed   2017   Normal Depart Highest Lowest
 Avg Maximum Temperature   50.0   48.5   47.0   +3.0   61.0   in 2006   26.5   in 1896  
Avg Minimum Temperature   35.0   35.5   33.0   +2.0   47.0   in 2006   13.5   in 1989  
Average Temperature   42.5   42.0   40.0   +2.5   54.0   in 2006   23.3   in 1896  
Total Precipitation   1.15   .04   .30   +.85   1.76   in 1981   .00   in 2011  
Total Snow   0.0   0.0   0.3   -0.3   3.4   in 1894   0.0   in    
Total HDD   44   46   50   -6   83   in 1896   22   in 2006  
Total CDD   0   0   0   +0   807   in 2016   290   in 1902  
Avg Maximum Dew Point   46.0   42.0   39.2   +6.8   59.5   in 2006   15.5   in 1976  
Avg Minimum Dew Point   32.0   28.5   20.1   +11.9   38.0   in 2006   -2.5   in 1989  
Average  Dew Point   39.0   35.3   27.9   +11.1   48.8   in 2006   8.8   in 1964  
    December 2, 2018     Record Record
Year-to-Date Summary   Observed   2017   Normal Depart Highest Lowest
Total Precipitation   50.38   39.15   44.15   +6.23   60.27   in 1983   24.15   in 1957  
Total Snow (since Jul 1 18)   4.2   0.0   1.4   +2.8   19.5   in 1898   0.0   in    
Total HDD (since Jul 1 18)   1104   843   1082   +22   1376   in 1904   818   in 2011  
Total CDD (since Jan 1)   775   580   563   +212   807   in 2016   290   in 1902  
                             
Hour-by-Hour Weather For December 2, 2018  
Climate Weather for December 2  
Weather History For December 2  
Weather Calendar  
Back To Weather Stat Page  
Home