Portsmouth Rhode Island Weather Almanac  
Sunday, March 26, 2023  
Cloudy, Light Sprinkle & Dense Fog early, Partly Cloudy Day to Clear PM, Much Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    March 26, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   58   53   49   +9   67   in 1954   31   in 1947  
Minimum Temperature   41   41   33   +8   47   in 2021   13   in 1960  
Average Temperature   50   47   41   +9   54   in 2021   24   in 1960  
 Month Avg Max Temperature   47.2   50.6   44.8   +2.3   52.5   in 2012   33.5   in 1916  
Month Avg Min Temperature   33.6   33.6   30.0   +3.6   38.0   in 2012   21.1   in 1916  
Month Average Temperature   40.6   42.4   37.7   +2.9   45.5   in 2012   27.6   in 1916  
High Heat Index                                      
Low Wind Chill   38   37   25   +13             0   in 1960  
Heating Degree Days   15   18   24   -9   41   in 1960   11   in 2021  
Month HDD   635   588   711   -76   973   in 1916   507   in 2012  
Season HDD   3945   4158   4537   -592   5593   in 1905   3748   in 2012  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   44   41   37   +7   53   in 2021   8   in 1985  
Minimum Dew Point   29   35   23   +6   44   in 1953   -5   in 1960  
Average  Dew Point   37   38   30   +7   47   in 2021   2   in 1985  
 Month Avg Max Dew Point   37.2   41.1   34.1   +3.1   42.8   in 2012   22.8   in 1960  
Month Avg Min Dew Point   24.9   23.6   19.4   +5.5   29.2   in 2012   9.0   in 1950  
Month Average Dew Point   31.3   32.3   27.0   +4.2   36.0   in 2012   16.1   in 1960  
Precipitation   T   T   .15   +.00   2.58   in 1901            
One Hour   T   T           .92   in 1988            
Hourly Rate   .00   .00           3.43   in 2015            
Month Precipitation   3.89   3.11   3.65   +.24   8.47   in 1983   .22   in 1915  
Year Precipitation   13.02   12.50   10.75   +2.27   19.47   in 1979   5.76   in 2012  
Snow   0.0   0.0   0.1   -0.1   4.7   in 2001       in    
Snow Depth   0   0           4   in 1956       in    
Month Snow   0.1   0.5   5.2   -5.1   30.6   in 1956   0.0   in 1919  
Season Snow   9.1   34.2   32.5   -23.4   78.0   in 2005   5.0   in 1998  
    March 26, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   98%   85%   86%   +12%   100%   in 2021   35%   in 1985  
Minimum Humidity   44%   58%   45%   -1%   94%   in 2015   17%   in 1985  
Average Humidity   71%   72%   66%   +5%   96%   in 2015   26%   in 1985  
Maximum Barometer   30.00   29.53   30.11   -00.11   30.71   in 2018   29.53   in 2022  
Minimum Barometer   29.69   29.36   29.81   -00.12   30.58   in 2018   29.18   in 1969  
Average Barometer   29.85   29.45   29.96   -00.11   30.65   in 2018   29.38   in 1969  
Average Wind   6.3   6.1   8.8   -2.5   18.9   in 2014   3.4   in 1991  
Direction   WNW   WSW   NW       WNW SW
High Wind Gust   25   24   28   -3   52   in 1986   12   in 1971  
Direction   SW   SW   N       SW NNW
Maximum Water Temp   45.3   45.9   42.1   +3.2   47.9   in 2012   38.1   in 2015  
Minimum Water Temp   42.4   44.1   39.7   +2.7   46.0   in 2012   36.3   in 2014  
Average Water Temp   43.9   45.0   40.9   +2.9   47.0   in 2012   37.4   in 2014  
Sunrise/ AM Twilight   6:38:33 AM   7:08:37 AM            
Sunset / PM Twilight   7:03:38 PM   7:32:33 PM            
Length Of Day   12:25:05                          
Special Conditions   Dense Fog                              
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