Portsmouth Rhode Island Weather Almanac  
Saturday, October 23, 2021  
Cloudy early, Partly Cloudy Day to Mostly Cloudy PM, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2021
    October 23, 2021   Record   Record  
Observed Daily Data   2021   2020   Norm   Depart   Highest   Lowest  
Maximum Temperature   63   66   59   +4   75   in 1935   41   in 2003  
Minimum Temperature   50   55   45   +5   62   in 2007   26   in 1955  
Average Temperature   57   61   52   +5   67   in 2007   37   in 1969  
 Month Avg Max Temperature   68.9   66.4   63.3   +5.6   70.0   in 1990   55.4   in 1896  
Month Avg Min Temperature   54.5   51.0   48.7   +5.8   54.5   in 2021   40.4   in 1981  
Month Average Temperature   62.0   59.0   56.2   +5.8   62.0   in 2021   49.7   in 1896  
High Heat Index                   76   in 1935            
Low Wind Chill                             22   in 1980  
HDD   8   4   13   -5   28   in 1969   0   in 2007  
Month HDD   79   141   203   -124   352   in 1896   79   in 2021  
Season HDD   104   197   283   -179   474   in 1956   104   in 2021  
CDD   0   0   0   +0   2   in 2007   0   in    
Month CDD   9   4   6   +3   48   in 1954   0   in 2015  
Year CDD   795   871   609   +186   871   in 2020   290   in 1902  
Maximum Dew Point   49   60   50   -1   65   in 2017   24   in 1980  
Minimum Dew Point   39   53   38   +1   60   in 1990   10   in 1969  
Average  Dew Point   44   57   44   +0   63   in 1990   20   in 1969  
 Month Avg Max Dew Point   59.3   58.0   54.6   +4.7   60.6   in 2007   42.8   in 1974  
Month Avg Min Dew Point   50.9   46.3   42.7   +8.3   50.9   in 2021   31.3   in 1974  
Month Average Dew Point   55.3   52.4   48.6   +6.7   55.3   in 2021   37.1   in 1974  
Precipitation   .00   .00   .13   -.13   1.96   in 1970            
One Hour   .00   .00           .50   in 2006            
Hourly Rate   .00   .00           2.55   in 2006            
Month Precipitation   1.50   3.65   3.18   -1.68   8.81   in 2005   .01   in 1963  
Year Precipitation   40.60   28.91   36.26   +4.34   51.27   in 1998   19.78   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 23, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   80%   97%   89%   -9%   100%   in 2019   56%   in 1952  
Minimum Humidity   53%   76%   56%   -3%   94%   in 1990   20%   in 1952  
Average Humidity   67%   87%   73%   -6%   97%   in 1990   38%   in 1952  
Maximum Barometer   29.97   30.28   30.16   -00.19   30.66   in 2000   29.58   in 1965  
Minimum Barometer   29.88   30.05   29.88   -00.00   30.51   in 2000   29.16   in 1965  
Average Barometer   29.93   30.17   30.02   -00.10   30.59   in 2000   29.37   in 1965  
Average Wind   6.0   2.6   6.9   -0.9   14.4   in 1969   0.9   in 1994  
Direction   NNW   ENE   S       NNW         SSE        
High Wind Gust   16   12   23   -7   51   in 1923   11   in 1985  
Direction   NNW   WNW   SW       SSE         SSE        
Maximum Water Temp   64.0   64.9   59.8   +4.3   64.9   in 2021   53.8   in 2010  
Minimum Water Temp   63.1   63.3   57.8   +5.3   63.3   in 2021   51.2   in 2010  
Average Water Temp   63.6   64.1   58.8   +4.7   64.1   in 2021   52.5   in 2010  
Sunrise/ AM Twilight   7:05:26 AM   6:38:39 AM            
Sunset / PM Twilight   5:53:35 PM   6:20:23 PM            
Length Of Day   10:48:09                          
Special Conditions   None                              
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