Portsmouth Rhode Island Weather Almanac  
Friday, May 24, 2024  
Dense Fog early then Clear, Much Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    May 24, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   79   64   68   +11   85   in 1936   50   in 2005  
Minimum Temperature   59   42   51   +8   61   in 1977   39   in 1956  
Average Temperature   69   53   59   +10   72   in 1975   47   in 2005  
 Month Avg Max Temperature   63.8   65.6   63.8   +0.0   69.0   in 1918   56.8   in 2005  
Month Avg Min Temperature   49.0   47.3   47.5   +1.5   50.7   in 2012   41.6   in 1956  
Month Average Temperature   56.7   56.6   55.7   +1.0   59.4   in 1930   50.3   in 2005  
High Heat Index   79               85   in 1936            
Low Wind Chill       42                     36   in 2005  
Heating Degree Days   0   12   6   -6   18   in 2005   0   in 2024  
Month Heating DD   204   205   224   -20   354   in 2005   141   in 1918  
Season Heating DD   4935   4684   5428   -493   6499   in 1905   4470   in 2012  
Cooling Degree Days   4   0   1   +3   7   in 1975   0   in 2023  
Month Cooling DD   4   4   4   +0   27   in 2001   0   in 2020  
Year Cooling DD   4   4   4   +0   27   in 2001   0   in 2020  
Maximum Dew Point   66   53   56   +10   66   in 2024   36   in 1965  
Minimum Dew Point   56   39   45   +11   58   in 2011   19   in 1956  
Average  Dew Point   61   46   51   +10   61   in 2024   29   in 1956  
 Month Avg Max Dew Point   56.0   52.2   52.0   +3.9   57.6   in 2004   41.7   in 1967  
Month Avg Min Dew Point   45.8   38.8   40.7   +5.1   46.1   in 2012   30.3   in 1967  
Month Average Dew Point   51.1   45.8   46.4   +4.7   51.1   in 2024   36.0   in 1967  
Precipitation   .00   .01   .10   -.10   1.33   in 2001            
One Hour Rain   .00   .01           .53   in 1999            
Half Hour Rain   .00   .01           .22   in 2011            
Hourly Rain Rate   .00   .00           3.51   in 2011            
Month Precipitation   5.71   3.44   2.61   +3.10   6.96   in 2006   .35   in 2015  
Year Precipitation   28.63   20.67   18.47   +10.16   34.81   in 1983   11.34   in 1905  
Snow   0.0   0.0   0.0   +0.0       in              
Snow Depth   0   0   0   +0       in              
Month Snow   0.0   0.0   0.0   +0.0   1.7   in 1977   0.0   in Many  
Season Snow   12.7   9.1   33.8   -21.1   84.1   in 1996   5.0   in 1998  
    May 24, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   99%   96%   90%   +9%   100%   in 2013   62%   in 1965  
Minimum Humidity   46%   39%   55%   -9%   95%   in 1979   13%   in 1981  
Average Humidity   73%   68%   73%   -0%   98%   in 1979   41%   in 1981  
Maximum Barometer   29.86   30.23   30.05   -00.19   30.43   in 2007   29.49   in 1951  
Minimum Barometer   29.74   29.92   29.83   -00.09   30.24   in 2022   29.39   in 1951  
Average Barometer   29.80   30.08   29.94   -00.14   30.31   in 2007   29.44   in 1951  
Average Wind   5.0   5.0   6.7   -1.7   13.9   in 2003   2.0   in 1997  
Direction   SSW   S   SSW       N         SSE        
High Wind Gust   24   19   22   +2   44   in 1988   11   in 1997  
Direction   SSW   NW   NNE       NW         SE        
Maximum Water Temp   59.2   60.3   57.2   +2.0   65.5   in 2007   49.8   in 2020  
Minimum Water Temp   55.9   57.6   53.8   +2.1   59.5   in 2007   45.9   in 2020  
Average Water Temp   57.6   59.0   55.5   +2.1   62.5   in 2007   47.9   in 2020  
Sunrise/ AM Twilight   5:17:45 AM   4:45:02 AM            
Sunset / PM Twilight   8:06:41 PM   8:39:22 PM            
Length Of Day   14:48:56                          
Special Conditions   Dense Fog                              
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Hour-by-Hour Weather For May 24, 2024            
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