Portsmouth Rhode Island Weather Almanac  
Monday, February 24, 2025  
Mostly Cloudy early then Partly Cloudy, Warm  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2025
    February 24, 2025   Record   Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest   Lowest  
Maximum Temperature   43   42   41   +2   61   in 2017   11   in 1894  
Minimum Temperature   30   23   26   +4   45   in 2017   -3   in 1894  
Average Temperature   37   33   34   +3   53   in 2017   4   in 1894  
 Month Avg Max Temperature   37.3   40.2   39.1   -1.8   45.6   in 1990   26.3   in 1979  
Month Avg Min Temperature   22.9   27.6   24.8   -1.8   30.4   in 1925   10.7   in 1934  
Month Average Temperature   30.5   34.0   32.4   -1.9   37.6   in 2018   19.1   in 1979  
High Heat Index   76               76   in 2024            
Low Wind Chill   29   10   15   +14             -11   in 2015  
Heating Degree Days   28   32   31   -3   61   in 1894   12   in 2017  
Month Heating DD   829   743   783   +46   1102   in 1979   658   in 2018  
Season Heating DD   3580   3413   3702   -122   4706   in 1918   3044   in 2016    
Cooling Degree Days   0   0   #REF!   #REF!   0   in 1900   0   in All    
Month Cooling DD                                        
Year Cooling DD                                        
Maximum Dew Point   37   38   32   +5   53   in 2016   5   in 1968    
Minimum Dew Point   23   6   15   +8   44   in 2017   -10   in 2015    
Average  Dew Point   30   22   24   +6   48   in 2017   1   in 1968  
 Month Avg Max Dew Point   29.3   31.7   29.9   -0.5   40.7   in 2018   10.2   in 1979  
Month Avg Min Dew Point   13.9   19.5   13.4   +0.5   23.3   in 1984   -2.5   in 1979  
Month Average Dew Point   21.8   25.8   24.0   -2.2   31.6   in 2018   3.9   in 1979  
Precipitation   .00   .00   .13   -.13   1.69   in 1969            
One Hour Rain   .00   .00           .38   in 1979            
Half Hour Rain   .00   .00         .19   in 2016            
Hourly Rain Rate   .00   .00           1.04   in 2016            
Month Precipitation   3.15   1.10   2.91   +.24   6.67   in 1998   .66   in 1947  
Year Precipitation   5.05   7.85   6.58   -1.53   14.22   in 1979   2.64   in 1980    
Snow   0.0   0.0   0.4   -0.4   7.7   in 1969   0.0   in      
Snow Depth   0   0   1.1   -1.1   16   in 2015   0   in      
Month Snow   8.5   6.1   8.8   -0.3   26.4   in 2003   0.0   in 2020    
Season Snow   11.9   12.7   25.9   -14.0   61.1   in 1996   2.3   in 2023    
    February 24, 2025     Record Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest Lowest  
Maximum Humidity   90%   98%   86%   +4%   100%   in 2019   55%   in 1987    
Minimum Humidity   53%   40%   53%   -0%   95%   in 2016   22%   in 1968    
Average Humidity   72%   69%   70%   +2%   98%   in 2016   40%   in 1968    
Maximum Barometer   30.15   29.97   30.14   +00.01   30.93   in 1948   29.51   in 1984  
Minimum Barometer   29.93   29.40   29.76   +00.17   30.33   in 1999   29.11   in 1998  
Average Barometer   30.04   29.69   29.95   +00.09   30.44   in 1999   29.39   in 1984  
Average Wind   7.8   11.7   8.4   -0.6   18.8   in 1989   2.2   in 1965  
Direction   S   NW   NW       NE         NNW        
High Wind Gust   25   29   26   -1   43   in 2006   12   in 1952  
Direction   S   NNW   NW       NW         NW        
Maximum Water Temp   37.8   41.0   38.8   -1.0   44.4   in 2012   32.0   in 2015  
Minimum Water Temp   36.0   39.6   37.2   -1.2   42.7   in 2012   31.6   in 2015  
Average Water Temp   36.9   40.3   38.0   -1.1   43.6   in 2012   31.8   in 2015  
Sunrise/ AM Twilight   6:28:02 AM   6:26:54 AM            
Sunset / PM Twilight   5:30:02 PM   5:58:45 PM            
Length Of Day   11:02:00                          
Special Conditions   None                                  
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