Portsmouth Rhode Island Weather Almanac
Wednesday, October 28, 2020
Cloudy, Rain and Fog, Mostly Cloudy PM, Light Winds and Seasonal Temperatures
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    October 28, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   53   57   57   -4   73   in 1927   44   in 2005  
Minimum Temperature   46   49   42   +4   59   in 1953   27   in 1914  
Average Temperature   50   53   50   +0   64   in 1977   36   in 1976  
Precipitation   .24   .00   .13   +.11   2.77   in 1987            
One Hour   .06   .00           .48   in 1987            
Snow   0.0   0.0   0.0   +0.0   T   in 1903            
Snow Depth   0   0           0   in              
HDD   15   12   15   +0   29   in 1976   1   in 1977  
CDD   0   0   0   +0   0   in     0   in    
Maximum Dew Point   52   52   47   +5   65   in 1971   27   in 1976  
Minimum Dew Point   40   47   34   +6   59   in 1953   10   in 1974  
Average  Dew Point   46   50   40   +6   61   in 1971   22   in 1965  
Maximum Humidity   96%   94%   90%   +6%   100%   in 2018   60%   in 1965  
Minimum Humidity   72%   80%   56%   +16%   91%   in 2009   31%   in 1985  
Average Humidity   84%   87%   73%   +11%   94%   in 1953   46%   in 1965  
Maximum Barometer   30.16   30.32   30.13   +00.03   30.56   in 1946   29.67   in 1968  
Minimum Barometer   29.91   29.82   29.83   +00.08   30.29   in 1956   29.07   in 2006  
Average Barometer   30.04   30.07   29.98   +00.06   30.39   in 1956   29.45   in 2008  
Average Wind   4.5   10.9   7.6   -3.1   16.6   in 1962   2.5   in 1975  
Direction   NW   N   SW       SW         SSE        
High Wind Gust   15   25   25   -10   46   in 2006   11   in 1975  
Direction   NW   NW   SW       SE         S        
High Heat Index                   73   in 1927            
Wind Chill       42                     23   in 1976  
Maximum Water Temp   60.6   58.2   58.4   +2.2   62.0   in 2017   53.8   in 2018  
Minimum Water Temp   59.5   57.2   56.6   +2.9   59.9   in 2007   53.1   in 2018  
Average Water Temp   60.1   57.7   57.5   +2.5   60.9   in 2007   53.5   in 2018  
Sunrise/ AM Twilight   7:13:47 AM   6:45:16 AM            
Sunset / PM Twilight   5:44:06 PM   6:12:36 PM            
Length Of Day   10:30:19                          
Special Conditions   Fog                                  
Comments      
    October 28, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   64.9   63.1   62.1   +2.8   68.9   in 1947   55.2   in 1896  
Avg Minimum Temperature   50.3   48.8   46.5   +3.8   53.6   in 2017   40.7   in 1974  
Average Temperature   57.9   56.2   54.3   +3.6   61.4   in 2017   49.0   in 1896  
Total Precipitation   3.90   6.45   3.53   +.37   9.91   in 2005   .05   in 1947  
Total Snow   0.0   0.0   0.0   +0.0   0.7   in 1979   0.0   in    
Total HDD   203   254   299   -96   447   in 1896   122   in 1920  
Total CDD   4   8   5   -1   48   in 1954   0   in 2015  
Avg Maximum Dew Point   57.2   55.5   51.8   +5.4   60.1   in 2007   42.4   in 1974  
Avg Minimum Dew Point   45.1   44.0   40.0   +5.1   49.2   in 2017   29.3   in 1974  
Average  Dew Point   51.4   50.1   45.9   +5.5   54.5   in 2017   35.8   in 1974  
    October 28, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   29.16   45.85   39.04   -9.88   51.92   in 1998   20.15   in 1957  
Total Snow (since Jul 1 20)   0.0   0.0   0.0   +0.0   0.7   in 1979   0.0   in    
Total HDD (since Jul 1 20)   259   297   388   -129   558   in 1896   159   in 1920  
Total CDD (since Jan 1)   871   731   563   +308   871   in 2020   290   in 1902  
                             
Hour-by-Hour Weather For October 28, 2020  
Climate Weather for October 28  
Weather History For October 28  
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