Portsmouth Rhode Island Weather Almanac  
Thursday, October 14, 2021  
Partly Cloudy early then Clear, Light Wind and Very Warm  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2021
    October 14, 2021   Record   Record  
Observed Daily Data   2021   2020   Norm   Depart   Highest   Lowest  
Maximum Temperature   75   68   62   +13   80   in 1920   50   in 1959  
Minimum Temperature   59   51   48   +11   62   in 2014   29   in 1953  
Average Temperature   67   60   55   +12   70   in 1990   45   in 2009  
 Month Avg Max Temperature   69.5   66.4   64.9   +4.6   72.5   in 1990   55.6   in 1896  
Month Avg Min Temperature   54.9   51.2   50.2   +4.7   56.6   in 1961   40.1   in 1981  
Month Average Temperature   62.5   59.1   57.8   +4.7   64.4   in 1990   49.6   in 1981  
High Heat Index   77               81   in 1920            
Low Wind Chill                             29   in 1953  
HDD   0   5   10   -10   20   in 2009   0   in 2021  
Month HDD   40   83   101   -61   215   in 1981   32   in 1961  
Season HDD   65   139   181   -116   399   in 1956   62   in 1961  
CDD   2   0   0   +2   5   in 1990   0   in    
Month CDD   5   1   6   -1   45   in 1954   0   in 2016  
Year CDD   791   868   609   +182   868   in 2020   290   in 1902  
Maximum Dew Point   65   54   54   +11   70   in 1990   26   in 1980  
Minimum Dew Point   57   47   42   +15   61   in 1990   20   in 1980  
Average  Dew Point   61   51   48   +13   66   in 1990   23   in 1980  
 Month Avg Max Dew Point   62.7   57.4   56.4   +6.3   62.9   in 2005   43.2   in 1981  
Month Avg Min Dew Point   53.1   45.1   44.5   +8.6   54.7   in 2005   32.5   in 1981  
Month Average Dew Point   57.1   51.6   50.4   +6.7   58.8   in 2005   37.9   in 1981  
Precipitation   .00   .00   .14   -.14   2.92   in 1901            
One Hour   .00   .00           .69   in 1999            
Hourly Rate   .00   .00           5.43   in 2011            
Month Precipitation   1.25   1.73   1.96   -.71   5.83   in 1962   .00   in 1930  
Year Precipitation   40.35   26.99   35.04   +5.31   51.27   in 1998   18.73   in 1957  
Snow   0.0   0.0   0.0   +0.0   0.0   in         in    
Snow Depth   0   0   0       0   in         in    
Month Snow   0.0   0.0   0.0   -0.0   0.7   in 1979       in    
Season Snow   0.0   0.0   0.0   -0.0   0.7   in 1979       in    
    October 14, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   97%   95%   91%   +6%   100%   in 2017   55%   in 1950  
Minimum Humidity   67%   53%   55%   +12%   94%   in 2005   22%   in 1989  
Average Humidity   82%   74%   73%   +9%   97%   in 2005   47%   in 1950  
Maximum Barometer   29.93   30.03   30.13   -00.20   30.69   in 1951   29.60   in 1976  
Minimum Barometer   29.86   29.76   29.89   -00.03   30.40   in 1951   29.37   in 1976  
Average Barometer   29.90   29.90   30.01   -00.12   30.55   in 1951   29.49   in 1976  
Average Wind   4.1   6.5   6.7   -2.6   19.1   in 1955   1.3   in 1997  
Direction   NW   NW   WNW       ENE         SE        
High Wind Gust   20   22   23   -3   54   in 1955   10   in 2017  
Direction   N   NNW   N       ENE         ESE        
Maximum Water Temp   63.0   67.8   62.5   +0.5   67.8   in 2021   59.0   in 2009  
Minimum Water Temp   61.5   66.6   61.2   +0.3   66.6   in 2021   57.9   in 2009  
Average Water Temp   62.3   67.2   61.8   +0.4   67.2   in 2021   58.5   in 2009  
Sunrise/ AM Twilight   6:55:12 AM   6:28:46 AM            
Sunset / PM Twilight   6:07:05 PM   6:33:31 PM            
Length Of Day   11:11:53                          
Special Conditions   None                              
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