Portsmouth Rhode Island Weather Almanac
Thursday, December 24, 2020
Mostly Cloudy early, Partly Cloudy Day to Cloudy and Fog PM, Breezy and Very Warm
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    December 24, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   54   45   40   +14   67   in 2015   19   in 1905  
Minimum Temperature   42   32   26   +16   54   in 2015   2   in 1943  
Average Temperature   48   39   33   +15   61   in 2015   11   in 1943  
Precipitation   .00   .00   .13   -.13   1.83   in 1994            
One Hour   .00   .00           .45   in 1994            
Snow   0.0   0.0   0.3   -0.3   7.2   in 1912            
Snow Depth   1   0           16   in 2009            
HDD   17   26   32   -15   54   in 1943   4   in 2015  
CDD   0   0   0   +0   0   in   0   in    
Maximum Dew Point   53   32   32   +22   64   in 2015   6   in 1989  
Minimum Dew Point   36   17   15   +21   54   in 2015   -11   in 1975  
Average  Dew Point   45   25   23   +22   59   in 2015   -1   in 1975  
Maximum Humidity   96%   79%   88%   +8%   100%   in 2015   56%   in 1953  
Minimum Humidity   80%   40%   58%   +22%   98%   in 2014   26%   in 1999  
Average Humidity   88%   60%   73%   +15%   99%   in 2014   46%   in 1999  
Maximum Barometer   30.37   30.20   30.16   +00.21   30.68   in 1949   29.59   in 1994  
Minimum Barometer   29.91   29.85   29.80   +00.11   30.52   in 1959   29.19   in 1968  
Average Barometer   30.14   30.03   29.98   +00.16   30.58   in 1959   29.41   in 1968  
Average Wind   10.1   6.2   7.7   +2.4   18.5   in 1994   2.1   in 1959  
Direction   SSE   N   WNW       NNE         N        
High Wind Gust   35   22   26   +9   61   in 1994   11   in 1982  
Direction   S   N   WNW       NNE         N        
High Heat Index                                      
Wind Chill   39   28   18   +21             -17   in 1975  
Maximum Water Temp   45.7   40.3   44.5   +1.2   51.5   in 2015   40.3   in 2019  
Minimum Water Temp   43.0   37.0   42.2   +0.8   50.3   in 2015   37.0   in 2019  
Average Water Temp   44.4   38.7   43.4   +1.0   50.9   in 2015   38.7   in 2019  
Sunrise/ AM Twilight   7:10:02 AM   6:38:44 AM            
Sunset / PM Twilight   4:20:57 PM   4:52:15 PM            
Length Of Day   9:10:55                          
Special Conditions   Fog                                  
Comments      
    December 24, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   42.9   41.8   43.0   -0.1   54.5   in 2015   31.0   in 1989  
Avg Minimum Temperature   31.5   28.4   29.2   +2.3   42.0   in 2015   14.7   in 1989  
Average Temperature   37.4   35.4   36.0   +1.4   48.6   in 2015   23.1   in 1989  
Total Precipitation   4.25   5.28   3.44   +.81   9.27   in 1936   .45   in 1943  
Total Snow   7.4   8.4   5.5   +1.9   21.3   in 1981   0.0   in 2015  
Total HDD   662   710   689   -27   1006   in 1989   394   in 2015  
Total CDD   0   0   0   +0   0   in         in    
Avg Maximum Dew Point   36.6   35.3   34.9   +1.7   49.4   in 2015   15.5   in 1989  
Avg Minimum Dew Point   24.0   20.6   19.6   +4.4   37.0   in 2015   -1.3   in 1989  
Average  Dew Point   30.5   28.3   27.3   +3.2   43.4   in 2015   7.1   in 1989  
    December 24, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   41.13   54.78   47.42   -6.29   65.27   in 1983   27.14   in 1965  
Total Snow (since Jul 1 20)   8.0   8.4   6.6   +1.4   21.3   in 1898   0.0   in 2015  
Total HDD (since Jul 1 20)   1455   1700   1721   -266   2234   in 1904   1189   in 2015  
Total CDD (since Jan 1)   871   731   563   +308   871   in 2020   290   in 1902  
                                   
Hour-by-Hour Weather For December 24, 2020  
Climate Weather for December 24  
Weather History For December 24  
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