Portsmouth Rhode Island Weather Almanac  
Wednesday, October 9, 2024  
Partly Cloudy, Very Light Sprinkles 5/6 PM, Light Winds, Cooler  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    October 9, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   65   62   64   +1   85   in 2011   47   in 2000  
Minimum Temperature   49   46   50   -1   67   in 2017   32   in 1953  
Average Temperature   57   54   57   +0   71   in 2011   43   in 1896  
 Month Avg Max Temperature   69.1   71.1   65.9   +3.2   74.1   in 1941   57.0   in 1896  
Month Avg Min Temperature   51.6   53.8   51.1   +0.4   58.7   in 1927   42.1   in 1992  
Month Average Temperature   60.6   62.7   58.7   +1.9   66.3   in 1927   51.1   in 1899  
High Heat Index                   84   in 2011            
Low Wind Chill       46                     28   in 1896  
Heating Degree Days   8   11   8   +0   22   in 1896   0   in 2018  
Month Heating DD   40   34   57   -17   125   in 1899   15   in 1922  
Season Heating DD   78   98   137   -59   303   in 1956   57   in 1961    
Cooling Degree Days   0   0   0   +0   6   in 2011   0   in 2024    
Month Cooling DD   0   13   6   -6   28   in 1927   0   in 2024    
Year Cooling DD   692   721   609   +83   868   in 2020   290   in 1902    
Maximum Dew Point   53   49   56   -3   70   in 2005   31   in 1978    
Minimum Dew Point   42   41   44   -2   67   in 2017   23   in 1980    
Average  Dew Point   48   45   50   -2   68   in 2017   29   in 1978  
 Month Avg Max Dew Point   59.4   62.0   57.4   +2.0   65.8   in 2005   42.6   in 1974  
Month Avg Min Dew Point   48.1   52.1   45.6   +2.6   55.4   in 2005   31.2   in 1984  
Month Average Dew Point   54.1   57.2   51.4   +2.7   60.6   in 2005   37.6   in 1984  
Precipitation   T   .00   .14   -.14   1.77   in 1906            
One Hour Rain   T   .00           .72   in 1961            
Half Hour Rain   .00   .00         .29   in 2005            
Hourly Rain Rate   .00   .00           1.55   in 2005            
Month Precipitation   .65   .15   1.26   -.61   5.83   in 1962   .00   in 1930  
Year Precipitation   44.43   42.25   34.47   +9.96   50.17   in 1998   18.73   in 1957  
Snow   0.0   0.0   0.0   +0.0   0.0   in 1900            
Snow Depth   0   0   0   +0   45574   in              
Month Snow   #N/A   #N/A   #N/A   #N/A   #N/A   in #N/A   #N/A   in Many  
Season Snow                                      
    October 9, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   93%   88%   92%   +1%   100%   in 2017   65%   in 1972  
Minimum Humidity   55%   49%   60%   -5%   95%   in 2017   27%   in 1980  
Average Humidity   74%   69%   76%   -2%   98%   in 2017   52%   in 1980  
Maximum Barometer   29.90   29.84   30.14   -00.24   30.64   in 2001   29.63   in 1965  
Minimum Barometer   29.83   29.71   29.90   -00.07   30.45   in 2001   29.18   in 1996  
Average Barometer   29.87   29.78   30.02   -00.16   30.55   in 2001   29.48   in 1996  
Average Wind   4.4   6.4   6.6   -2.2   17.2   in 2019   1.8   in 2003  
Direction   SSW   SW   SSW       NNE         ESE        
High Wind Gust   18   25   23   -5   39   in 1996   10   in 1974  
Direction   SSW   SSW   SW       NNW         NNW        
Maximum Water Temp   64.9   64.4   63.8   +1.1   68.2   in 2005   59.4   in 2010  
Minimum Water Temp   64.2   62.8   62.2   +2.0   66.2   in 2021   56.3   in 2001  
Average Water Temp   64.6   63.6   63.0   +1.6   67.0   in 2005   58.5   in 2001  
Sunrise/ AM Twilight   6:51:01 AM   6:23:24 AM            
Sunset / PM Twilight   6:12:36 PM   6:41:22 PM            
Length Of Day   11:21:35                          
Special Conditions   None                                  
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