Portsmouth Rhode Island Weather Almanac  
Wednesday, November 17, 2021  
Clear & Cold early, Partly Cloudy day to Mostly Cloudy and Warmer  PM  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2021
    November 17, 2021   Record   Record  
Observed Daily Data   2021   2020   Norm   Depart   Highest   Lowest  
Maximum Temperature   57   49   51   +6   69   in 1927   35   in 1924  
Minimum Temperature   33   37   38   -5   58   in 1927   14   in 1924  
Average Temperature   45   43   45   +0   64   in 1927   25   in 1924  
 Month Avg Max Temperature   56.3   59.9   53.8   +2.5   61.5   in 1975   46.4   in 1933  
Month Avg Min Temperature   38.7   43.8   40.1   -1.4   45.7   in 2006   31.5   in 1933  
Month Average Temperature   47.6   52.1   47.0   +0.6   52.6   in 2015   39.2   in 1933  
High Heat Index                                      
Low Wind Chill   31   29   31   +0             11   in 1997  
Heating Degree Days   20   22   20   +0   40   in 1924   1   in 1927  
Month HDD   295   219   305   -10   439   in 1933   210   in 2015  
Season HDD   485   547   701   -216   971   in 1992   485   in 2021  
Cooling Degree Days   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   34   43   +9   62   in 2006   20   in 1999  
Minimum Dew Point   29   29   29   +0   44   in 1981   4   in 1996  
Average  Dew Point   41   32   36   +5   53   in 2006   14   in 1996  
 Month Avg Max Dew Point   44.4   51.0   45.2   -0.8   53.1   in 2005   31.6   in 1976  
Month Avg Min Dew Point   31.4   37.1   32.0   -0.6   41.4   in 2006   19.4   in 1980  
Month Average Dew Point   38.1   44.3   38.6   -0.5   46.6   in 2006   26.5   in 1976  
Precipitation   T   .00   .13   -.13   1.86   in 1920            
One Hour   T   .00           .43   in 2010            
Hourly Rate   .00   .00           4.30   in 2010            
Month Precipitation   .89   2.08   2.21   -1.32   7.28   in 1969   .00   in 1917  
Year Precipitation   44.89   33.36   39.57   +5.32   55.21   in 1983   22.67   in 1957  
Snow   0.0   0.0   0.0   +0.0   2.6   in 1933       in    
Snow Depth   0   0           1   in 1967       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 17, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   87%   76%   88%   -1%   100%   in 2014   48%   in 1996  
Minimum Humidity   52%   46%   54%   -2%   93%   in 2002   9%   in 1996  
Average Humidity   70%   61%   71%   -2%   97%   in 2002   29%   in 1996  
Maximum Barometer   30.37   30.05   30.17   +00.20   30.68   in 1969   29.37   in 1965  
Minimum Barometer   30.17   29.86   29.84   +00.33   30.47   in 1969   28.98   in 1965  
Average Barometer   30.27   29.96   30.01   +00.26   30.58   in 1969   29.18   in 1965  
Average Wind   6.5   7.3   7.7   -1.2   19.3   in 2002   0.9   in 2004  
Direction   SSW   NW   W       N         WNW        
High Wind Gust   20   26   25   -5   54   in 1935   10   in 2003  
Direction   SSW   NW   WNW       NE         N        
Maximum Water Temp   54.5   54.5   52.6   +1.9   56.7   in 2011   46.4   in 2018  
Minimum Water Temp   52.2   53.2   50.6   +1.6   55.8   in 2006   45.1   in 2018  
Average Water Temp   53.4   53.9   51.6   +1.7   56.3   in 2006   45.8   in 2018  
Sunrise/ AM Twilight   6:35:18 AM   6:06:58 AM            
Sunset / PM Twilight   4:25:16 PM   4:53:36 PM            
Length Of Day   9:49:58                          
Special Conditions   None                              
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