Portsmouth Rhode Island Weather Almanac  
Monday, April 7, 2025  
Cloudy, Mid-Day Light Rain and Fog, Colder  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2025
    April 7, 2025   Record   Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest   Lowest  
Maximum Temperature   48   49   52   -4   80   in 2010   26   in 1982  
Minimum Temperature   38   36   37   +1   53   in 1991   18   in 1982  
Average Temperature   43   43   45   -2   63   in 2010   22   in 1982  
 Month Avg Max Temperature   53.4   46.6   51.3   +2.1   64.4   in 2010   41.1   in 1898  
Month Avg Min Temperature   39.4   36.0   36.3   +3.1   43.9   in 2010   27.6   in 1982  
Month Average Temperature   46.7   41.6   44.1   +2.6   54.3   in 2010   35.1   in 1898  
High Heat Index                   80   in ;2010            
Low Wind Chill   32   28   30   +2             2   in 1982  
Heating Degree Days   22   22   20   +2   43   in 1982   2   in 2010  
Month Heating DD   128   164   146   -18   209   in 1898   75   in 2010  
Season Heating DD   4491   4396   4796   -305   5825   in 1918   3992   in 2012  
Cooling Degree Days   0   0   0   +0   0   in 1900   0   in All  
Month Cooling DD                                      
Year Cooling DD                                      
Maximum Dew Point   41   35   40   +1   59   in 2010   15   in 1950  
Minimum Dew Point   36   31   27   +9   44   in 2010   3   in 2002  
Average  Dew Point   39   33   33   +6   52   in 2010   11   in 1982  
 Month Avg Max Dew Point   46.7   39.1   39.3   +7.4   52.0   in 2010   19.0   in 1965  
Month Avg Min Dew Point   31.6   31.9   25.7   +5.9   40.1   in 2010   9.3   in 1965  
Month Average Dew Point   39.1   35.5   32.4   +6.7   46.1   in 2010   14.1   in 1965  
Precipitation   .19   .00   .15   +.04   1.92   in 1958            
One Hour Rain   .05   .00           .47   in 1964            
Half Hour Rain   .03   .00         .23   in 2016            
Hourly Rain Rate   .14   .00           3.89   in 2016            
Month Precipitation   1.39   2.36   1.05   +.34   3.76   in 2017   .00   in 1925  
Year Precipitation   10.65   21.20   12.51   -1.86   21.34   in 1998   6.44   in 2012  
Snow   0.0   0.0   0.0   +0.0   3.2   in 1997   0.0   in    
Snow Depth   0   0   0.1   -0.1   6   in 1982   0   in    
Month Snow   0.0   0.0   0.5   -0.5   8.0   in 1982   0.0   in 2025  
Season Snow   11.9   12.7   33.5   -21.6   78.0   in 2005   5.0   in 1998  
    April 7, 2025     Record Record
Observed Daily Data   2025   2024   Norm   Depart   Highest Lowest
Maximum Humidity   97%   92%   84%   +13%   100%   in 2003   49%   in 1950  
Minimum Humidity   71%   56%   47%   +24%   93%   in 1987   22%   in 1959  
Average Humidity   84%   74%   66%   +18%   97%   in 1987   38%   in 1959  
Maximum Barometer   29.88   30.10   30.00   -00.12   30.73   in 1945   29.35   in 1958  
Minimum Barometer   29.62   29.86   29.73   -00.11   30.44   in 2003   28.88   in 1971  
Average Barometer   29.75   29.98   29.86   -00.11   30.55   in 2003   29.26   in 1958  
Average Wind   8.3   9.3   8.3   -0.0   18.5   in 1950   3.9   in 2021  
Direction   ENE   N   SSW       NNE         ENE        
High Wind Gust   22   25   27   -5   48   in 1979   15   in 1995  
Direction   NE   NNW   NW       W         N        
Maximum Water Temp   44.8   43.7   44.5   +0.3   56.3   in 2010   40.5   in 2003  
Minimum Water Temp   44.1   42.3   42.3   +1.8   51.1   in 2010   38.2   in 2003  
Average Water Temp   44.5   43.0   43.4   +1.1   53.7   in 2010   39.4   in 2003  
Sunrise/ AM Twilight   6:09:35 AM   5:48:03 AM            
Sunset / PM Twilight   7:17:16 PM   7:46:06 PM            
Length Of Day   13:00:20                          
Special Conditions   Fog                                  
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