Portsmouth Rhode Island Weather Almanac  
Sunday, January 26, 2025  
Cloudy early, Partly Cloudy Day to Clear PM, Much Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2025
    January 26, 2025   Record   Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest   Lowest  
Maximum Temperature   41   43   37   +4   56   in 1990   15   in 2007  
Minimum Temperature   26   37   23   +3   43   in 1916   2   in 1924  
Average Temperature   34   40   30   +4   47   in 1916   10   in 2007  
 Month Avg Max Temperature   34.7   39.0   38.2   -3.4   46.1   in 1913   28.2   in 2004  
Month Avg Min Temperature   22.4   26.7   24.3   -2.0   33.0   in 2023   11.9   in 1981  
Month Average Temperature   28.8   33.0   31.3   -2.5   38.9   in 2023   20.7   in 1981  
High Heat Index   76               76   in 2024            
Low Wind Chill   20   32   13   +7             -15   in 1994  
Heating Degree Days   31   25   35   -4   55   in 2007   18   in 1916  
Month Heating DD   940   831   875   +65   1151   in 1981   679   in 2023  
Season Heating DD   2592   2511   2745   -153   3543   in 1918   2156   in 2016    
Cooling Degree Days   0   0   #REF!   #REF!   0   in 1900   0   in All    
Month Cooling DD                                        
Year Cooling DD                                        
Maximum Dew Point   27   42   28   -1   55   in 1990   -1   in 2007    
Minimum Dew Point   17   36   11   +6   41   in 1958   -13   in 2004    
Average  Dew Point   22   39   20   +2   45   in 1950   -7   in 2007  
 Month Avg Max Dew Point   24.4   32.3   30.4   -6.0   40.0   in 2023   14.4   in 1981  
Month Avg Min Dew Point   14.0   19.2   14.3   -0.3   28.1   in 2023   -2.7   in 1981  
Month Average Dew Point   19.5   26.0   22.5   -3.0   34.2   in 2023   5.8   in 1981  
Precipitation   .00   .26   .11   -.11   1.36   in 1895            
One Hour Rain   .00   .06           .49   in 1978            
Half Hour Rain   .00   .04         .14   in 2023            
Hourly Rain Rate   .00   .14           1.26   in 2023            
Month Precipitation   1.49   5.79   3.12   -1.63   12.02   in 1979   .78   in 1955  
Year Precipitation   1.49   5.79   3.12   -1.63   12.02   in 1979   .78   in 1955    
Snow   0.0   0.0   0.4   -0.4   4.3   in 1987   0.0   in      
Snow Depth   1   0   1.5   -0.5   25   in 2005   0   in      
Month Snow   3.2   6.4   8.4   -5.2   33.8   in 2005   T   in 1986    
Season Snow   3.4   6.5   15.5   -12.1   46.0   in 2005   0.5   in 1928    
    January 26, 2025     Record Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest Lowest  
Maximum Humidity   75%   99%   84%   -9%   100%   in 2000   48%   in 1980    
Minimum Humidity   47%   93%   51%   -4%   96%   in 1958   23%   in 1993    
Average Humidity   61%   96%   68%   -7%   98%   in 1958   42%   in 2004    
Maximum Barometer   30.21   30.27   30.12   +00.09   30.78   in 1994   29.35   in 1979  
Minimum Barometer   30.01   29.97   29.77   +00.24   30.59   in 1996   28.82   in 1978  
Average Barometer   30.11   30.12   29.95   +00.16   30.66   in 1996   29.11   in 1978  
Average Wind   7.3   6.5   8.8   -1.5   23.7   in 1978   2.5   in 1963  
Direction   W   E   NW       SSW         NNE        
High Wind Gust   26   16   28   -2   63   in 1978   12   in 1973  
Direction   WNW   E   NW       SSW         S        
Maximum Water Temp   37.6   44.1   39.4   -1.8   44.2   in 2023   34.6   in 2014  
Minimum Water Temp   35.2   43.0   37.0   -1.8   43.0   in 2024   31.7   in 2004  
Average Water Temp   36.4   43.6   38.2   -1.8   43.6   in 2024   33.8   in 2014  
Sunrise/ AM Twilight   7:02:01 AM   6:32:23 AM            
Sunset / PM Twilight   4:53:06 PM   5:23:14 PM            
Length Of Day   16:53:45                          
Special Conditions   None                                  
Comments                                      
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