Portsmouth Rhode Island Weather Almanac  
Wednesday, March 27, 2024  
Cloudy, Light Rain and Fog, Much Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2024
    March 27, 2024   Record   Record  
Observed Daily Data   2024   2023   Norm   Depart   Highest   Lowest  
Maximum Temperature   58   56   49   +9   70   in 1998   31   in 1894  
Minimum Temperature   38   36   34   +4   46   in 1948   16   in 1975  
Average Temperature   48   46   42   +6   57   in 1998   25   in 1894  
 Month Avg Max Temperature   49.5   47.5   45.0   +4.6   52.3   in 2012   34.1   in 1916  
Month Avg Min Temperature   34.9   33.7   30.1   +4.7   37.6   in 2012   21.6   in 1916  
Month Average Temperature   42.4   40.8   37.8   +4.6   45.2   in 2012   28.1   in 1916  
High Heat Index                   #N/A   in #N/A            
Low Wind Chill   31   35   24   +7             -1   in 1975  
Heating Degree Days   17   19   23   -6   40   in 1894   8   in 1998  
Month Heating DD   611   654   734   -123   996   in 1916   534   in 2012  
Season Heating DD   4158   3964   4591   -433   5609   in 1905   3775   in 2012  
Cooling Degree Days   0   0   0   +0       in     0   in Many  
Month Cooling DD   0   0   0   +0   3   in 2022   0   in Many  
Year Cooling DD   726   784   609   +117   871   in 2020   290   in 1902  
Maximum Dew Point   51   40   37   +14   55   in 1998   6   in 1975  
Minimum Dew Point   38   25   23   +15   42   in 1998   -3   in 1982  
Average  Dew Point   45   33   30   +15   49   in 1998   3   in 1975  
 Month Avg Max Dew Point   40.5   37.3   34.2   +6.3   41.7   in 2012   23.1   in 1960  
Month Avg Min Dew Point   27.6   24.9   19.6   +8.0   28.0   in 2012   9.6   in 1950  
Month Average Dew Point   34.4   31.1   27.1   +7.2   34.9   in 2012   16.5   in 1960  
Precipitation   .06   .27   .15   -.09   1.22   in 1948            
One Hour Rain   .01   .16           .36   in 1988            
Half Hour Rain   .01   .10           .10   in 2023            
Hourly Rain Rate   .00   .41           .41   in 2023            
Month Precipitation   7.02   4.16   3.80   +3.22   8.47   in 1983   .22   in 1915  
Year Precipitation   16.58   13.29   11.03   +5.55   19.47   in 1979   5.76   in 2012  
Snow   0.0   0.0   0.1   -0.1   1.3   in 1959            
Snow Depth   0   0   0   -0   5   in 2001            
Month Snow   T   0.1   5.3   -5.3   30.6   in 1956   0.0   in 1919  
Season Snow   12.7   9.1   32.9   -20.2   78.0   in 2005   5.0   in 1998  
    March 27, 2024     Record Record
Observed Daily Data   2024   2023   Norm   Depart   Highest Lowest
Maximum Humidity   98%   94%   83%   +15%   100%   in 2017   39%   in 2012  
Minimum Humidity   78%   33%   46%   +32%   90%   in 2015   13%   in 2012  
Average Humidity   88%   64%   64%   +24%   95%   in 1978   26%   in 2012  
Maximum Barometer   30.14   30.09   30.12   +00.02   30.70   in 2018   29.37   in 1955  
Minimum Barometer   30.04   29.97   29.82   +00.22   30.36   in 2019   29.22   in 1955  
Average Barometer   30.09   30.03   29.97   +00.12   30.46   in 2019   29.30   in 1955  
Average Wind   7.1   4.7   8.7   -1.6   23.6   in 1955   3.2   in 2008  
Direction   N   SSE   WNW       WSW   WNW  
High Wind Gust   21   17   28   -7   60   in 1955   13   in 1957  
Direction   NNE   SSE   NW       WSW   NE  
Maximum Water Temp   43.2   46.6   42.2   +1.0   46.6   in 2023   37.9   in 2014  
Minimum Water Temp   41.2   43.7   39.7   +1.5   44.5   in 2012   35.6   in 2014  
Average Water Temp   42.2   45.2   41.0   +1.2   45.3   in 2012   36.8   in 2014  
Sunrise/ AM Twilight   6:35:35 AM   6:06:53 AM            
Sunset / PM Twilight   7:05:33 PM   7:33:40 PM            
Length Of Day   12:29:58                          
Special Conditions   Fog                                  
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