Portsmouth Rhode Island Weather Almanac  
Monday, October 25, 2021  
Cloudy, Morning & Late Evening Rain, Foggy, Light Winds and Much Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2021
    October 25, 2021   Record   Record  
Observed Daily Data   2021   2020   Norm   Depart   Highest   Lowest  
Maximum Temperature   68   55   59   +9   72   in 1893   46   in 1930  
Minimum Temperature   52   42   44   +8   60   in 1913   29   in 2003  
Average Temperature   60   49   52   +8   65   in 1913   40   in 1962  
 Month Avg Max Temperature   68.4   65.9   62.9   +5.5   69.4   in 1990   55.2   in 1896  
Month Avg Min Temperature   54.0   50.6   48.4   +5.6   54.4   in 2017   40.1   in 1981  
Month Average Temperature   61.4   58.6   55.8   +5.6   62.0   in 2017   49.4   in 1896  
High Heat Index                   0   in              
Low Wind Chill       37                     27   in 2003  
HDD   5   16   13   -8   25   in 1962   0   in 1913  
Month HDD   98   164   229   -131   391   in 1896   98   in 2021  
Season HDD   123   220   309   -186   505   in 1956   123   in 2021  
CDD   0   0   0   +0   0   in     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   64   44   49   +15   67   in 2017   31   in 1969  
Minimum Dew Point   48   34   38   +10   58   in 2017   17   in 1955  
Average  Dew Point   56   39   43   +13   63   in 2017   27   in 1969  
 Month Avg Max Dew Point   59.1   57.5   54.2   +4.9   60.4   in 2007   42.7   in 1974  
Month Avg Min Dew Point   50.2   45.7   42.3   +7.9   50.2   in 2021   30.8   in 1974  
Month Average Dew Point   54.8   51.8   48.2   +6.6   55.2   in 2017   36.7   in 1974  
Precipitation   .53   T   .14   +.39   1.72   in 1953            
One Hour   .12   T           .42   in 1951            
Hourly Rate   1.95   .00           3.76   in 2017            
Month Precipitation   2.03   3.65   3.45   -1.42   9.91   in 2005   .01   in 1963  
Year Precipitation   41.13   28.91   36.53   +4.60   51.27   in 1998   20.15   in 1957  
Snow   0.0   0.0   0.0   +0.0   T   in 1962       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 25, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   99%   79%   90%   +9%   100%   in 2017   67%   in 1952  
Minimum Humidity   85%   63%   56%   +29%   93%   in 1975   30%   in 1955  
Average Humidity   92%   71%   73%   +19%   96%   in 2017   52%   in 1952  
Maximum Barometer   30.19   30.38   30.13   +00.06   30.62   in 1956   29.47   in 1959  
Minimum Barometer   29.86   30.02   29.86   +00.00   30.36   in 2003   29.00   in 1925  
Average Barometer   30.03   30.20   29.99   +00.03   30.43   in 2003   29.39   in 1959  
Average Wind   4.9   7.3   7.5   -2.6   15.1   in 2005   1.6   in 2012  
Direction   NNE   ENE   W       NNE         SE        
High Wind Gust   17   21   24   -7   72   in 1925   11   in 1998  
Direction   NNE   ENE   NNE       W         WNW        
Maximum Water Temp   62.6   63.5   59.2   +3.4   63.6   in 2017   53.4   in 2018  
Minimum Water Temp   60.1   62.4   57.5   +2.6   63.0   in 2017   50.9   in 2018  
Average Water Temp   61.4   63.0   58.4   +3.0   63.3   in 2017   52.2   in 2018  
Sunrise/ AM Twilight   7:07:46 AM   6:40:53 AM            
Sunset / PM Twilight   5:50:46 PM   6:17:40 PM            
Length Of Day   10:43:00                          
Special Conditions   Fog                                  
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