Portsmouth Rhode Island Weather Almanac  
Monday, March 24, 2025  
Mostly Cloudy early then Cloudy, Moderate Rain & Fog, Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2025
    March 24, 2025   Record   Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest   Lowest  
Maximum Temperature   47   43   48   -1   66   in 1938   28   in 1940  
Minimum Temperature   33   28   33   +0   46   in 1903   12   in 1906  
Average Temperature   40   36   41   -1   53   in 1938   22   in 1940  
 Month Avg Max Temperature   49.5   49.8   44.0   +5.5   52.5   in 2012   32.0   in 1916  
Month Avg Min Temperature   33.2   34.8   30.8   +2.3   38.1   in 2012   20.1   in 1916  
Month Average Temperature   41.7   42.5   37.3   +4.3   45.5   in 2012   26.3   in 1916  
High Heat Index   76               76   in 2024            
Low Wind Chill   29   15   23   +6             -4   in 1906  
Heating Degree Days   25   29   24   +1   43   in 1940   12   in 1938  
Month Heating DD   560   541   663   -103   928   in 1916   467   in 2012  
Season Heating DD   4222   4088   4489   -267   5556   in 1905   3708   in 2012  
Cooling Degree Days   0   0   #REF!   #REF!   0   in 1900   0   in All  
Month Cooling DD                                      
Year Cooling DD                                      
Maximum Dew Point   47   36   36   +11   56   in 1974   9   in 2014  
Minimum Dew Point   16   13   22   -6   44   in 1953   -1   in 2014  
Average  Dew Point   32   25   29   +3   48   in 1953   4   in 2014  
 Month Avg Max Dew Point   38.7   40.7   33.9   +4.8   42.7   in 2012   22.6   in 1960    
Month Avg Min Dew Point   22.9   27.3   19.1   +3.8   29.8   in 2012   8.3   in 1950    
Month Average Dew Point   31.0   34.0   26.8   +4.2   36.3   in 2012   16.5   in 1960    
Precipitation   .89   .00   .15   +.74   1.43   in 1993              
One Hour Rain   .19   .00           .34   in 1989              
Half Hour Rain   .10   .00         .13   in 2022              
Hourly Rain Rate   .85   .00           .85   in 2025              
Month Precipitation   3.83   6.95   3.35   +.48   8.47   in 1983   .22   in 1915    
Year Precipitation   9.01   16.51   10.45   -1.44   19.24   in 1998   5.76   in 2012    
Snow   0.0   0.0   0.2   -0.2   3.5   in 1896   0.0   in      
Snow Depth   0   0   0.2   -0.2   7   in 1967   0   in      
Month Snow   0.0   T   5.0   -5.0   30.6   in 1956   0.0   in 2025    
Season Snow   11.9   12.7   32.3   -20.4   78.0   in 2005   5.0   in 1998    
    March 24, 2025     Record Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest Lowest  
Maximum Humidity   99%   96%   84%   +15%   100%   in 2003   49%   in 2014    
Minimum Humidity   48%   29%   47%   +1%   93%   in 1953   20%   in 1973    
Average Humidity   74%   63%   66%   +8%   97%   in 1953   36%   in 2014    
Maximum Barometer   30.17   30.42   30.11   +00.06   30.88   in 1906   29.52   in 1950    
Minimum Barometer   29.69   29.67   29.81   -00.12   30.39   in 2004   29.11   in 1950    
Average Barometer   29.93   30.05   29.96   -00.03   30.50   in 2004   29.32   in 1950    
Average Wind   8.4   15.1   8.2   +0.2   16.8   in 1968   3.1   in 1981    
Direction   SSE   NNW   NW       SW         E          
High Wind Gust   31   40   26   +5   47   in 1926   13   in 2015    
Direction   SSE   NNW   NW       NW         WNW          
Maximum Water Temp   44.1   42.1   41.5   +2.6   50.0   in 2012   36.5   in 2015    
Minimum Water Temp   43.2   40.3   39.4   +3.8   47.7   in 2012   34.4   in 2015  
Average Water Temp   43.7   41.2   40.6   +3.1   48.9   in 2012   35.5   in 2015  
Sunrise/ AM Twilight   6:41:05 AM   6:12:03 AM            
Sunset / PM Twilight   7:02:00 PM   7:30:18 PM            
Length Of Day   12:20:55                          
Special Conditions   Fog                                  
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Hour-by-Hour Weather For March 24, 2025            
Climate Weather for March 24            
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