Portsmouth Rhode Island Weather Almanac  
Sunday, March 2, 2025  
Clear, Dry, Very Windy and Very Cold  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2025
    March 2, 2025   Record   Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest   Lowest  
Maximum Temperature   30   47   41   -11   60   in 1985   25   in 1950  
Minimum Temperature   18   35   27   -9   40   in 1991   10   in 1962  
Average Temperature   24   41   35   -11   49   in 1985   18   in 1962  
 Month Avg Max Temperature   39.5   43.0   47.0   -7.5   54.5   in 1991   26.5   in 1980  
Month Avg Min Temperature   21.0   30.0   34.0   -13.0   39.5   in 1902   10.5   in 1980  
Month Average Temperature   30.5   36.5   40.0   -9.5   46.0   in 1902   18.5   in 1980  
High Heat Index   76               76   in 2024            
Low Wind Chill   4   31   18   -14             -6   in 1962  
Heating Degree Days   41   24   30   +11   47   in 1962   16   in 1985  
Month Heating DD   69   57   61   +8   93   in 1980   38   in 1902  
Season Heating DD   3731   3604   3887   -156   4878   in 1918   3219   in 2016  
Cooling Degree Days   0   0   #REF!   #REF!   0   in 1900   0   in All  
Month Cooling DD                                      
Year Cooling DD                                      
Maximum Dew Point   12   47   32   -20   56   in 1991   4   in 1980  
Minimum Dew Point   -2   31   16   -18   35   in 2004   -12   in 1980  
Average  Dew Point   5   39   24   -19   45   in 1991   -4   in 1980  
 Month Avg Max Dew Point   27.5   39.0   32.0   -4.5   48.5   in 2017   -2.0   in 1980    
Month Avg Min Dew Point   5.0   21.5   16.0   -11.0   34.5   in 2018   -13.5   in 1980    
Month Average Dew Point   16.5   30.3   24.0   -7.5   39.5   in 2018   -7.8   in 1980    
Precipitation   .00   1.57   .13   -.13   2.96   in 2018              
One Hour Rain   .00   .38           .69   in 2007              
Half Hour Rain   .00   .19         .36   in 2007              
Hourly Rain Rate   .00   1.30           1.79   in 2007              
Month Precipitation   .00   1.57   .26   -.26   2.99   in 2018   .00   in 2024    
Year Precipitation   5.18   11.13   7.36   -2.18   17.45   in 1979   2.65   in 1980    
Snow   0.0   0.0   0.3   -0.3   8.8   in 1996   0.0   in      
Snow Depth   0   0   1.1   -1.1   20   in 2015   0   in      
Month Snow   0.0   0.0   0.6   -0.6   9.3   in 1959   0.0   in 2025    
Season Snow   11.9   12.7   27.9   -16.0   69.9   in 1996   4.7   in 1998    
    March 2, 2025     Record Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest Lowest  
Maximum Humidity   61%   99%   83%   -22%   100%   in 2007   38%   in 1980    
Minimum Humidity   32%   82%   52%   -20%   90%   in 1991   22%   in 1953    
Average Humidity   47%   91%   67%   -21%   95%   in 1991   32%   in 1980    
Maximum Barometer   30.15   30.57   30.05   +00.10   30.68   in 2002   29.44   in 1968    
Minimum Barometer   29.71   30.07   29.71   -00.00   30.27   in 1962   29.04   in 2018    
Average Barometer   29.93   30.32   29.88   +00.05   30.45   in 2002   29.27   in 1968    
Average Wind   14.9   11.0   9.6   +5.3   26.0   in 2018   2.7   in 2001    
Direction   WNW   SE   WNW       NNE         ENE          
High Wind Gust   35   41   29   +6   65   in 2018   7   in 1998    
Direction   NW   SE   WNW       NNE         S          
Maximum Water Temp   39.6   41.0   39.1   +0.5   42.7   in 2012   32.5   in 2015    
Minimum Water Temp   38.5   39.7   37.4   +1.1   41.0   in 2012   30.9   in 2015  
Average Water Temp   39.1   40.4   38.4   +0.7   41.9   in 2012   31.7   in 2015  
Sunrise/ AM Twilight   6:17:37 AM   5:48:36 AM            
Sunset / PM Twilight   5:37:10 PM   6:05:39 PM            
Length Of Day   11:19:33                          
Special Conditions   None                                  
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