Portsmouth Rhode Island Weather Almanac  
Wednesday, October 27, 2021  
Cloudy, Morning Rain & Fog, Record Breaking High Winds & Gusts, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2021
    October 27, 2021   Record   Record  
Observed Daily Data   2021   2020   Norm   Depart   Highest   Lowest  
Maximum Temperature   52   59   58   -6   75   in 1947   40   in 1936  
Minimum Temperature   47   49   44   +3   62   in 2010   26   in 1936  
Average Temperature   50   54   51   -1   66   in 1977   33   in 1936  
 Month Avg Max Temperature   67.6   65.3   62.6   +5.1   68.9   in 1947   55.3   in 1896  
Month Avg Min Temperature   53.6   50.4   48.0   +5.6   53.9   in 2017   40.7   in 1981  
Month Average Temperature   60.9   58.2   55.5   +5.4   61.5   in 2017   49.1   in 1896  
High Heat Index                   76   in 1947            
Low Wind Chill   39                         21   in 1976  
HDD   15   11   14   +1   32   in 1936   0   in 1977  
Month HDD   120   188   257   -137   429   in 1896   119   in 2017  
Season HDD   145   244   337   -192   540   in 1896   145   in 2021  
CDD   0   0   0   +0   1   in 1977   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   51   57   49   +2   64   in 2010   26   in 1979  
Minimum Dew Point   44   41   37   +7   61   in 2010   9   in 1974  
Average  Dew Point   48   49   43   +5   63   in 2010   21   in 1976  
 Month Avg Max Dew Point   58.9   57.4   53.8   +5.0   60.3   in 2007   42.6   in 1974  
Month Avg Min Dew Point   50.0   45.3   41.9   +8.1   50.0   in 2021   30.0   in 1974  
Month Average Dew Point   54.6   51.6   47.8   +6.8   54.9   in 2007   36.3   in 1974  
Precipitation   .29   .00   .14   +.15   2.45   in 2019            
One Hour   .06   .00           .77   in 2019            
Hourly Rate   .13   .00           4.54   in 2010            
Month Precipitation   3.31   3.66   3.73   -.42   9.91   in 2005   .01   in 1963  
Year Precipitation   42.41   28.92   36.81   +5.60   51.27   in 1998   20.15   in 1957  
Snow   0.0   0.0   0.0   +0.0   0.0   in         in    
Snow Depth   0   0   0       T   in 1962       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 27, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   96%   98%   89%   +7%   100%   in 2018   63%   in 1974  
Minimum Humidity   89%   59%   57%   +32%   95%   in 1981   25%   in 1974  
Average Humidity   93%   79%   73%   +20%   98%   in 1981   44%   in 1974  
Maximum Barometer   29.81   30.18   30.14   -00.33   30.58   in 2015   29.68   in 1959  
Minimum Barometer   29.22   30.05   29.86   -00.64   30.49   in 2015   29.22   in 2021  
Average Barometer   29.52   30.12   30.00   -00.48   30.54   in 2015   29.52   in 2021  
Average Wind   24.5   5.8   6.8   +17.7   24.5   in 2021   1.6   in 1981  
Direction   N   NNE   NNE       N         NE        
High Wind Gust   57   20   23   +34   57   in 2021   10   in 2015  
Direction   N   NNW   N       N         SSW        
Maximum Water Temp   61.2   62.6   58.6   +2.6   62.6   in 2021   53.8   in 2018  
Minimum Water Temp   60.3   59.9   56.9   +3.4   60.3   in 2020   51.4   in 2018  
Average Water Temp   60.8   61.3   57.7   +3.0   61.3   in 2021   52.6   in 2018  
Sunrise/ AM Twilight   7:10:07 AM   6:43:07 AM            
Sunset / PM Twilight   5:48:02 PM   6:15:02 PM            
Length Of Day   10:37:55                          
Special Conditions   Fog                                  
Comments   Record Breaking High Winds & Low Barometer            
Hour-by-Hour Weather For October 27, 2021            
Climate Weather for October 27            
Weather History For October 27            
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