Portsmouth Rhode Island Weather Almanac  
Tuesday, October 3, 2023  
Clear, Very Light Winds and Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    October 3, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   76   54   67   +9   82   in 1922   52   in 1899  
Minimum Temperature   48   50   52   -4   63   in 2007   35   in 1899  
Average Temperature   62   52   59   +3   71   in 1922   44   in 1899  
 Month Avg Max Temperature   71.7   56.0   67.3   +4.3   81.0   in 1927   50.0   in 1899  
Month Avg Min Temperature   50.3   50.3   52.3   -2.0   63.7   in 1927   38.0   in 1899  
Month Average Temperature   61.3   53.3   59.7   +1.7   72.7   in 1927   44.3   in 1899  
High Heat Index                   84   in 1922            
Low Wind Chill   48   43                     32   in 1899  
Heating Degree Days   3   13   6   -3   21   in 1899   0   in Many  
Month Heating DD   11   35   16   -5   62   in 1899   0   in 2002  
Season Heating DD   72   35   16   +56   242   in 1956   23   in 1921  
Cooling Degree Days   0   0   0   -0   6   in 1922   0   in Many  
Month Cooling DD   0   0   3   -3   23   in 1927   0   in 2023  
Year Cooling DD   708   770   606   +102   868   in 2020   290   in 1902  
Maximum Dew Point   66   45   58   +8   72   in 1969   37   in 1974  
Minimum Dew Point   48   42   46   +2   62   in 2007   26   in 1957  
Average  Dew Point   57   44   52   +5   65   in 2007   32   in 1957  
 Month Avg Max Dew Point   61.0   51.3   58.7   +2.3   67.3   in 1954   42.0   in 1974  
Month Avg Min Dew Point   48.7   43.7   46.7   +2.0   61.3   in 1954   32.3   in 1994  
Month Average Dew Point   55.0   47.7   52.7   +2.3   64.3   in 1954   37.7   in 1974  
Precipitation   .00   T   .14   -.14   2.22   in 1969            
One Hour Rain   .00   T           1.04   in 1979            
Half Hour Rain   .00   T           .35   in 2011            
Hourly Rain Rate   .00   .00           2.29   in 2009            
Month Precipitation   .00   .91   .42   -.42   2.51   in 1984   .00   in 2023  
Year Precipitation   42.10   30.72   33.50   +8.60   48.53   in 1998   17.64   in 1957  
Snow                                      
Snow Depth                                      
Month Snow                                      
Season Snow   0.0   0.0   0.0   +0.0   0.0   in 1996   0.0   in 1998  
    October 3, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   98%   80%   93%   +5%   100%   in 2018   59%   in 1957  
Minimum Humidity   68%   66%   61%   +7%   94%   in 2012   33%   in 1957  
Average Humidity   83%   73%   77%   +6%   97%   in 1951   46%   in 1957  
Maximum Barometer   30.18   30.24   30.10   +00.08   30.67   in 2017   29.70   in 1965  
Minimum Barometer   30.09   30.14   29.90   +00.19   30.53   in 2017   29.44   in 1977  
Average Barometer   30.14   30.19   30.00   +00.14   30.60   in 2017   29.58   in 1977  
Average Wind   2.5   15.1   6.4   -3.9   15.1   in 2022   1.2   in 2005  
Direction   SSW   NE   SSW       NE SSE
High Wind Gust   14   33   22   -8   46   in 1964   10   in 2012  
Direction   SSW   NE   SSW       WNW NNE
Maximum Water Temp   65.3   63.3   65.1   +0.2   68.3   in 2002   60.6   in 1997  
Minimum Water Temp   63.9   60.4   63.1   +0.8   67.0   in 2011   56.3   in 1999  
Average Water Temp   64.6   61.9   64.1   +0.5   67.4   in 2021   59.4   in 2010  
Sunrise/ AM Twilight   6:43:44 AM   6:17:04 AM            
Sunset / PM Twilight   6:23:47 PM   6:51:12 PM            
Length Of Day   11:39:24                          
Special Conditions   Fog                                  
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