Portsmouth Rhode Island Weather Almanac  
Saturday, November 13, 2021  
Clear early then Partly Cloudy, Strong But Fast Cold Front early Evening, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2021
    November 13, 2021   Record   Record  
Observed Daily Data   2021   2020   Norm   Depart   Highest   Lowest  
Maximum Temperature   60   51   53   +7   65   in 1964   32   in 2019  
Minimum Temperature   40   43   39   +1   54   in 1930   20   in 2019  
Average Temperature   50   47   46   +4   59   in 1964   26   in 2019  
 Month Avg Max Temperature   57.5   61.9   54.4   +3.2   64.5   in 1975   46.0   in 1894  
Month Avg Min Temperature   39.2   45.8   40.7   -1.5   47.8   in 2015   32.0   in 1976  
Month Average Temperature   48.5   54.2   47.6   +0.9   55.6   in 1938   39.9   in 1894  
High Heat Index                                      
Low Wind Chill   34   39   32   +2             4   in 2019  
HDD   15   18   19   -4   39   in 2019   6   in 1964  
Month HDD   214   141   226   -12   326   in 1894   122   in 1938  
Season HDD   404   469   622   -218   860   in 1992   404   in 2021  
CDD   0   0   0   +0       in         in    
Month CDD   0   0   0   +0   0   in         in    
Year CDD   795   871   609   +186   871   in 2020   290   in 1902  
Maximum Dew Point   52   50   44   +8   60   in 2018   9   in 2019  
Minimum Dew Point   33   40   31   +2   51   in 2006   4   in 2019  
Average  Dew Point   43   45   37   +6   55   in 2006   7   in 2019  
 Month Avg Max Dew Point   44.9   52.8   45.7   -0.8   54.2   in 2015   33.2   in 1976  
Month Avg Min Dew Point   32.1   39.7   32.7   -0.6   43.0   in 2015   20.5   in 1980  
Month Average Dew Point   38.8   46.5   39.2   -0.5   48.9   in 2015   27.3   in 1976  
Precipitation   .11   .23   .13   -.02   3.42   in 1975            
One Hour   .11   .04           .65   in 1975            
Hourly Rate   5.70   .07           5.70   in 2021            
Month Precipitation   .85   1.74   1.69   -.84   6.68   in 1969   .00   in 1917  
Year Precipitation   44.85   33.02   39.05   +5.80   52.79   in 1998   21.93   in 1957  
Snow   0.0   0.0   0.0   +0.0   3.1   in 2004       in    
Snow Depth   0   0           7   in 1987       in    
Month Snow   0.0   0.0   0.0   +0.0   8.3   in 1987       in    
Season Snow   0.0   0.6   0.0   +0.0   8.3   in 1987       in    
    November 13, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   98%   99%   88%   +10%   100%   in 2018   53%   in 1954  
Minimum Humidity   53%   90%   54%   -1%   90%   in 2020   26%   in 2010  
Average Humidity   76%   95%   71%   +5%   95%   in 2020   43%   in 1954  
Maximum Barometer   29.93   30.09   30.16   -00.23   30.71   in 1927   29.45   in 1968  
Minimum Barometer   29.50   29.88   29.86   -00.36   30.47   in 1996   28.69   in 1904  
Average Barometer   29.72   29.99   30.01   -00.29   30.53   in 1996   29.22   in 1968  
Average Wind   8.1   6.2   7.8   +0.3   16.5   in 2003   1.0   in 1955  
Direction   WNW   NE   WNW       W         SW        
High Wind Gust   38   19   25   +13   63   in 1904   9   in 1955  
Direction   WNW   ENE   NW       NE         SE        
Maximum Water Temp   58.6   57.6   54.0   +4.6   58.6   in 2021   48.9   in 2010  
Minimum Water Temp   57.6   56.3   51.9   +5.7   57.6   in 2021   46.6   in 2010  
Average Water Temp   58.1   57.0   53.0   +5.1   58.1   in 2021   47.8   in 2010  
Sunrise/ AM Twilight   6:30:32 AM   6:02:28 AM            
Sunset / PM Twilight   4:28:38 PM   4:56:42 PM            
Length Of Day   9:58:06                          
Special Conditions   Fog, Thunderstorm                          
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