Portsmouth Rhode Island Weather Almanac  
Thursday, March 23, 2023  
Cloudy, Early AM & Mid-Day Light Rain, Dense Fog and Warmer  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    March 23, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   53   45   48   +5   67   in 2012   27   in 1940  
Minimum Temperature   45   33   33   +12   55   in 2012   10   in 1934  
Average Temperature   49   39   40   +9   61   in 2012   20   in 1934  
 Month Avg Max Temperature   46.6   50.4   44.3   +2.2   52.3   in 2012   31.7   in 1916  
Month Avg Min Temperature   33.1   32.9   29.6   +3.5   37.8   in 2012   20.1   in 1916  
Month Average Temperature   40.0   42.0   37.2   +2.8   45.3   in 2012   26.2   in 1916  
High Heat Index                                      
Low Wind Chill   39   26   22   +17             -2   in 1934  
Heating Degree Days   16   26   25   -9   45   in 1934   4   in 2012  
Month HDD   575   530   639   -64   893   in 1916   454   in 2012  
Season HDD   3885   4100   4465   -580   5529   in 1905   3688   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   50   32   36   +14   56   in 2012   9   in 2017  
Minimum Dew Point   42   17   22   +20   42   in 2023   -4   in 2017  
Average  Dew Point   46   25   29   +17   47   in 2012   3   in 2017  
 Month Avg Max Dew Point   36.1   40.7   33.8   +2.3   42.8   in 2012   22.0   in 1960  
Month Avg Min Dew Point   24.3   22.2   19.0   +5.3   30.0   in 2012   7.5   in 1950  
Month Average Dew Point   30.4   31.5   26.7   +3.7   36.4   in 2012   16.2   in 1960  
Precipitation   .08   .00   .15   -.07   3.28   in 2010            
One Hour   .04   .00           .49   in 2010            
Hourly Rate   .08   .00           1.25   in 2010            
Month Precipitation   3.62   1.65   3.20   +.42   8.47   in 1983   .22   in 1915  
Year Precipitation   12.75   11.04   10.30   +2.45   19.24   in 1998   5.76   in 2012  
Snow   0.0   0.0   0.2   -0.2   1.9   in 2005       in    
Snow Depth   0   0           7   in 1967       in    
Month Snow   0.1   0.5   4.8   -4.7   27.8   in 1956   0.0   in 1947  
Season Snow   9.1   34.2   32.1   -23.0   76.9   in 2005   5.0   in 1998  
    March 23, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   76%   81%   +18%   100%   in 1970   42%   in 2017  
Minimum Humidity   80%   39%   44%   +36%   91%   in 2010   19%   in 1973  
Average Humidity   90%   58%   63%   +27%   94%   in 2010   31%   in 2017  
Maximum Barometer   30.22   30.28   30.08   +00.14   30.73   in 2020   29.44   in 1977  
Minimum Barometer   29.70   30.21   29.79   -00.09   30.41   in 1989   29.06   in 1977  
Average Barometer   29.96   30.25   29.94   +00.02   30.55   in 1989   29.25   in 1977  
Average Wind   7.1   6.7   8.5   -1.4   17.8   in 1973   2.7   in 1985  
Direction   SSW   N   WNW       NNE S
High Wind Gust   23   19   27   -4   46   in 1977   12   in 1985  
Direction   SSW   N   WNW       NNW SE
Maximum Water Temp   44.1   44.1   41.2   +2.9   50.5   in 2012   35.5   in 2015  
Minimum Water Temp   43.2   42.6   39.0   +4.2   47.2   in 2012   33.8   in 2015  
Average Water Temp   43.7   43.4   40.2   +3.5   48.9   in 2012   34.7   in 2015  
Sunrise/ AM Twilight   6:43:39 AM   7:13:47 AM            
Sunset / PM Twilight   7:00:20 PM   7:29:11 PM            
Length Of Day   12:16:41                          
Special Conditions   Dense Fog                              
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Hour-by-Hour Weather For March 23, 2023            
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