Portsmouth Rhode Island Weather Almanac  
Sunday, February 2, 2025  
Clear early, Partly Cloudy Day to Cloudy, Snow & Fog PM, Colder  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2025
    February 2, 2025   Record   Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest   Lowest  
Maximum Temperature   34   43   37   -3   53   in 1951   15   in 1971  
Minimum Temperature   11   35   23   -12   37   in 2014   -2   in 1961  
Average Temperature   23   39   31   -8   45   in 1933   8   in 1961  
 Month Avg Max Temperature   37.5   43.5   37.0   +0.5   54.5   in 1951   14.5   in 1971  
Month Avg Min Temperature   14.0   34.0   23.0   -9.0   37.5   in 2016   1.0   in 1961  
Month Average Temperature   26.0   39.0   31.0   -5.0   45.5   in 2016   9.5   in 1971  
High Heat Index   76               76   in 2024            
Low Wind Chill   0   26   10   -10             -22   in 1961  
Heating Degree Days   42   26   34   +8   57   in 1961   20   in 1933  
Month Heating DD   78   52   68   +10   111   in 1971   39   in 2016  
Season Heating DD   2829   2722   2987   -158   3869   in 1918   2330   in 2016    
Cooling Degree Days   0   0   #REF!   #REF!   0   in 1900   0   in All    
Month Cooling DD                                        
Year Cooling DD                                        
Maximum Dew Point   33   38   28   +5   51   in 1973   -6   in 1971    
Minimum Dew Point   1   32   12   -11   35   in 2014   -24   in 1961    
Average  Dew Point   17   35   20   -3   39   in 1988   -13   in 1961  
 Month Avg Max Dew Point   36.5   37.5   27.5   +9.0   52.5   in 1951   -5.5   in 1971  
Month Avg Min Dew Point   2.0   30.5   11.5   -9.5   33.0   in 1988   -22.5   in 1961  
Month Average Dew Point   19.5   34.0   20.0   -0.5   40.0   in 1988   -11.0   in 1961  
Precipitation   .13   T   .11   +.02   1.09   in 1999            
One Hour Rain   .00   .00           .38   in 1976            
Half Hour Rain   .00   .00         .12   in 2011            
Hourly Rain Rate   .00   .00           .56   in 2011            
Month Precipitation   .22   T   .22   .+00   2.32   in 1915   .00   in 2019  
Year Precipitation   2.12   6.75   3.89   -1.77   12.07   in 1979   1.00   in 1955    
Snow   1.4   0.0   0.3   +1.1   4.5   in 1895   0.0   in      
Snow Depth   0   0   2.0   -2.0   24   in 1898   0   in      
Month Snow   1.4   0.0   0.6   0.8   10.9   in 1898   0.0   in 2024    
Season Snow   4.8   6.6   17.7   -12.9   46.0   in 2005   1.5   in 1989    
    February 2, 2025     Record Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest Lowest  
Maximum Humidity   96%   94%   86%   +10%   100%   in 2022   43%   in 1980    
Minimum Humidity   53%   78%   55%   -2%   92%   in 1973   13%   in 1992    
Average Humidity   75%   86%   71%   +4%   96%   in 1973   34%   in 1975    
Maximum Barometer   30.62   29.94   30.16   +00.46   30.62   in 2025   29.24   in 1958  
Minimum Barometer   30.25   29.83   29.82   +00.43   30.44   in 2005   28.86   in 1976  
Average Barometer   30.44   29.89   29.99   +00.44   30.50   in 2005   29.16   in 1976  
Average Wind   7.8   6.6   8.2   -0.4   18.0   in 1976   1.8   in 2022  
Direction   N   N   WNW       W         NNW        
High Wind Gust   23   25   26   -3   50   in 1976   7   in 2022  
Direction   S   N   N       WNW         E        
Maximum Water Temp   38.1   42.3   39.0   -0.9   43.9   in 2012   35.2   in 2019  
Minimum Water Temp   36.1   41.2   37.1   -1.0   42.8   in 2012   30.4   in 2019  
Average Water Temp   37.1   41.8   38.1   -1.0   43.4   in 2012   32.8   in 2019  
Sunrise/ AM Twilight   6:56:14 AM   6:55:27 AM            
Sunset / PM Twilight   5:02:36 PM   5:32:42 PM            
Length Of Day   10:06:22                          
Special Conditions   Fog                                  
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