Portsmouth Rhode Island Weather Almanac  
Saturday, October 16, 2021  
Mostly Cloudy early, Partly Cloudy Day to Cloudy PM, Windy and Very Warm  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2021
    October 16, 2021   Record   Record  
Observed Daily Data   2021   2020   Norm   Depart   Highest   Lowest  
Maximum Temperature   73   69   62   +11   82   in 1897   43   in 2009  
Minimum Temperature   65   52   47   +18   65   in 2021   32   in 1978  
Average Temperature   69   61   55   +14   72   in 1897   41   in 2009  
 Month Avg Max Temperature   69.8   66.8   64.6   +5.3   72.1   in 1990   55.8   in 1896  
Month Avg Min Temperature   55.8   51.4   49.9   +5.9   55.8   in 2021   39.6   in 1981  
Month Average Temperature   63.1   59.4   57.4   +5.6   63.8   in 1990   49.8   in 1981  
High Heat Index   74               79   in 1956            
Low Wind Chill                             32   in 2009  
HDD   0   4   10   -10   24   in 2009   0   in 2021  
Month HDD   40   90   121   -81   244   in 1981   40   in 2021  
Season HDD   65   146   201   -136   404   in 1956   65   in 2021  
CDD   4   0   0   +4   7   in 1897   0   in    
Month CDD   9   1   6   +3   48   in 1954   0   in 2016  
Year CDD   795   868   609   +186   868   in 2020   290   in 1902  
Maximum Dew Point   68   65   53   +15   68   in 2021   30   in 1961  
Minimum Dew Point   64   51   41   +23   64   in 2021   25   in 1994  
Average  Dew Point   66   58   47   +19   66   in 2021   28   in 1961  
 Month Avg Max Dew Point   61.3   58.1   56.0   +5.3   63.1   in 2018   43.6   in 1981  
Month Avg Min Dew Point   53.9   45.8   44.1   +9.9   53.9   in 2021   32.5   in 1981  
Month Average Dew Point   57.9   52.3   50.0   +7.9   57.9   in 2021   38.0   in 1981  
Precipitation   T   .31   .14   -.14   1.79   in 1955            
One Hour   T   .27           .44   in 2019            
Hourly Rate   .00   .75           4.54   in 2015            
Month Precipitation   1.25   2.04   2.24   -.99   8.11   in 2005   .01   in 1963  
Year Precipitation   40.35   27.30   35.32   +5.03   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 16, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   96%   96%   91%   +5%   100%   in 2014   61%   in 1963  
Minimum Humidity   82%   87%   55%   +27%   94%   in 2014   18%   in 1963  
Average Humidity   89%   92%   73%   +16%   97%   in 2014   40%   in 1963  
Maximum Barometer   29.91   30.09   30.10   -00.19   30.58   in 1950   29.46   in 2005  
Minimum Barometer   29.63   30.01   29.83   -00.20   30.28   in 1950   29.15   in 2019  
Average Barometer   29.77   30.05   29.97   -00.20   30.43   in 1950   29.41   in 2005  
Average Wind   11.3   9.8   7.4   +3.9   15.5   in 2002   1.9   in 2006  
Direction   S   S   S       ENE         WNW        
High Wind Gust   29   29   25   +4   59   in 1954   12   in 2006  
Direction   S   S   NW       SE         SSW        
Maximum Water Temp   63.9   67.8   62.0   +1.9   67.8   in 2021   57.8   in 2009  
Minimum Water Temp   63.1   66.9   60.3   +2.8   66.9   in 2021   54.6   in 2009  
Average Water Temp   63.5   67.4   61.2   +2.3   67.4   in 2021   56.2   in 2009  
Sunrise/ AM Twilight   6:57:27 AM   6:30:57 AM            
Sunset / PM Twilight   6:03:59 PM   6:30:29 PM            
Length Of Day   11:06:32                          
Special Conditions   None                              
Comments   Record Breaking High Dew Points                  
Hour-by-Hour Weather For October 16, 2021            
Climate Weather for October 16            
Weather History For October 16            
Weather Calendar            
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