Portsmouth Rhode Island Weather Almanac  
Friday, October 13, 2023  
Partly Cloudy early then Clear, Windy and Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    October 13, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   62   65   63   -1   79   in 1954   45   in 1934  
Minimum Temperature   48   60   48   +0   66   in 1990   30   in 1956  
Average Temperature   55   63   56   -1   71   in 1954   41   in 1934  
 Month Avg Max Temperature   69.5   62.7   65.2   +4.3   72.2   in 1990   55.8   in 1896  
Month Avg Min Temperature   52.2   50.5   50.4   +1.8   56.6   in 1961   40.3   in 1956  
Month Average Temperature   61.1   56.8   58.0   +3.1   63.9   in 1990   49.8   in 1981  
High Heat Index                   81   in 1954            
Low Wind Chill   43                         29   in 1956  
Heating Degree Days   10   2   9   +1   24   in 1934   0   in Many  
Month Heating DD   64   107   91   -27   198   in 1981   31   in 1961  
Season Heating DD   125   107   91   +34   389   in 1956   61   in 1961  
Cooling Degree Days   0   0   0   -0   6   in 1954   0   in Many  
Month Cooling DD   13   1   6   +7   42   in 1954   0   in 2016  
Year Cooling DD   721   771   609   +112   868   in 2020   290   in 1902  
Maximum Dew Point   51   63   54   -3   70   in 1983   33   in 1958  
Minimum Dew Point   42   58   42   +0   65   in 1990   20   in 1980  
Average  Dew Point   47   61   48   -1   67   in 1990   29   in 1980  
 Month Avg Max Dew Point   60.1   55.1   56.6   +3.5   64.2   in 2018   43.5   in 1981  
Month Avg Min Dew Point   50.2   46.6   44.7   +5.5   54.6   in 2005   32.5   in 1956  
Month Average Dew Point   55.4   51.1   50.6   +4.8   59.1   in 2018   38.2   in 1981  
Precipitation   .00   1.17   .14   -.14   3.12   in 1895            
One Hour Rain   .00   .23           .54   in 1990            
Half Hour Rain   .00   .17           .33   in 2011            
Hourly Rain Rate   .00   2.82           3.16   in 2011            
Month Precipitation   .29   2.90   1.82   -1.53   5.83   in 1962   .00   in 1930  
Year Precipitation   42.39   32.71   34.90   +7.49   50.80   in 1998   18.73   in 1957  
Snow                                      
Snow Depth                                      
Month Snow           0.0       0.7   in 1979   0.0   in    
Season Snow           0.0       0.7   in 1979   0.0   in    
    October 13, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   90%   99%   90%   -0%   100%   in 2002   70%   in 2012  
Minimum Humidity   53%   85%   55%   -2%   94%   in 1990   27%   in 1963  
Average Humidity   72%   92%   72%   -1%   97%   in 1990   51%   in 1963  
Maximum Barometer   29.93   30.13   30.16   -00.23   30.64   in 1942   29.70   in 2004  
Minimum Barometer   29.85   29.86   29.92   -00.07   30.35   in 2017   29.40   in 1950  
Average Barometer   29.89   30.00   30.04   -00.15   30.43   in 2012   29.56   in 1950  
Average Wind   9.3   12.7   6.2   +3.1   13.6   in 1984   2.1   in 1997  
Direction   NNW   SSE   SW       NNE SSE
High Wind Gust   26   29   21   +5   35   in 1984   12   in 2004  
Direction   NW   ESE   NW       NE S
Maximum Water Temp   64.9   63.1   62.7   +2.2   67.8   in 2021   59.2   in 1996  
Minimum Water Temp   62.0   62.6   61.1   +0.9   66.2   in 2021   56.5   in 2012  
Average Water Temp   63.5   62.9   61.9   +1.5   67.0   in 2021   58.6   in 2012  
Sunrise/ AM Twilight   6:54:36 AM   6:27:42 AM            
Sunset / PM Twilight   6:07:23 PM   6:35:04 PM            
Length Of Day   11:12:08                          
Special Conditions   None                              
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