Portsmouth Rhode Island Weather Almanac  
Monday, April 14, 2025  
Clear, Light Fog early then Partly Cloudy, Much Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2025
    April 14, 2025   Record   Record  
Observed Daily Data   2025   2024   Norm   Depart   Highest   Lowest  
Maximum Temperature   68   59   55   +13   87   in 2023   40   in 1996  
Minimum Temperature   37   42   39   -2   52   in 2023   28   in 1957  
Average Temperature   53   51   47   +6   70   in 2023   34   in 1923  
 Month Avg Max Temperature   51.5   52.6   52.5   -1.0   62.9   in 1945   44.2   in 2003  
Month Avg Min Temperature   36.4   39.4   37.2   -0.8   43.4   in 2010   29.3   in 1982  
Month Average Temperature   44.2   46.3   45.1   -0.9   53.1   in 2010   38.5   in 1907  
High Heat Index                   87   in 2023            
Low Wind Chill   33   38   32   +1             17   in 1959  
Heating Degree Days   12   14   18   -6   31   in 1923   0   in 2023  
Month Heating DD   291   262   278   +13   371   in 1907   167   in 2010  
Season Heating DD   4654   4494   4928   -274   6005   in 1918   4099   in 2012  
Cooling Degree Days   0   0   0   +0   5   in 2023   0   in All  
Month Cooling DD                                      
Year Cooling DD                                      
Maximum Dew Point   44   43   42   +2   60   in 2023   20   in 1963  
Minimum Dew Point   35   35   29   +6   49   in 2019   2   in 1992  
Average  Dew Point   40   39   36   +4   54   in 2023   15   in 1963  
 Month Avg Max Dew Point   43.4   42.9   40.3   +3.1   48.5   in 2010   29.5   in 1965  
Month Avg Min Dew Point   29.6   34.1   26.9   +2.7   36.0   in 2010   13.5   in 1982  
Month Average Dew Point   36.5   38.5   33.6   +2.9   42.3   in 2010   22.1   in 1982  
Precipitation   .00   .05   .14   -.14   3.14   in 1895            
One Hour Rain   .00   .04           .19   in 1979            
Half Hour Rain   .00   .02         .05   in 2004            
Hourly Rain Rate   .00   .13           .21   in 2004            
Month Precipitation   2.24   3.26   2.03   +.21   5.72   in 1983   .03   in 1963  
Year Precipitation   11.50   22.10   13.49   -1.99   24.99   in 1983   6.57   in 2012  
Snow   0.0   0.0   0.0   +0.0   3.3   in 1997   0.0   in    
Snow Depth   0   0   0.0   +0.0   T   in 1940   0   in    
Month Snow   T   0.0   0.5   -0.5   9.6   in 1996   0.0   in 2024  
Season Snow   11.9   12.7   33.5   -21.6   84.1   in 1996   5.0   in 1998  
    April 14, 2025     Record Record
Observed Daily Data   2025   2024   Norm   Depart   Highest Lowest
Maximum Humidity   97%   88%   85%   +12%   100%   in 2019   48%   in 1976  
Minimum Humidity   38%   47%   43%   -5%   95%   in 2004   14%   in 1992  
Average Humidity   68%   68%   64%   +3%   98%   in 2004   33%   in 1963  
Maximum Barometer   29.82   29.91   30.10   -00.28   30.60   in 1991   29.52   in 1951  
Minimum Barometer   29.69   29.71   29.83   -00.14   30.31   in 2017   28.99   in 1943  
Average Barometer   29.76   29.81   29.96   -00.21   30.39   in 2000   29.35   in 1953  
Average Wind   8.5   8.2   7.4   +1.1   17.7   in 1953   3.4   in 1980  
Direction   NW   W   NW       N         ENE        
High Wind Gust   28   25   25   +3   46   in 1953   14   in 1970  
Direction   SSW   SW   S       N         S        
Maximum Water Temp   45.7   47.3   47.0   -1.3   52.3   in 2023   43.2   in 2004  
Minimum Water Temp   43.3   45.7   44.0   -0.7   49.7   in 2010   39.2   in 2003  
Average Water Temp   44.5   46.5   45.5   -1.0   51.0   in 2023   41.6   in 2003  
Sunrise/ AM Twilight   6:57:59 AM   5:36:23 AM            
Sunset / PM Twilight   7:24:52 PM   7:54:08 PM            
Length Of Day   13:19:13                          
Special Conditions   Fog, Haze  
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