Portsmouth Rhode Island Weather Almanac  
Tuesday, March 14, 2023  
Cloudy, Heavy Rain early, Very Light Snow Mix PM, Windy, Seasonal Temps  
  Climate Normal Period Climate Record Period
  1991 - 2020 1893 - 2023
    March 14, 2023   Record   Record  
Observed Daily Data   2023   2022   Norm   Depart   Highest   Lowest  
Maximum Temperature   43   52   45   -2   62   in 2002   26   in 1896  
Minimum Temperature   33   28   30   +3   46   in 1927   10   in 1896  
Average Temperature   38   40   38   +0   51   in 2012   18   in 1896  
 Month Avg Max Temperature   44.9   46.1   43.0   +1.9   52.1   in 2020   33.1   in 1916  
Month Avg Min Temperature   32.1   28.4   28.4   +3.6   36.9   in 1973   19.3   in 1950  
Month Average Temperature   38.7   37.6   36.0   +2.7   44.7   in 1973   27.5   in 1916  
High Heat Index                                      
Low Wind Chill   22   19   22   +0             -4   in 1993  
Heating Degree Days   27   25   27   +0   47   in 1896   14   in 2012  
Month HDD   368   384   406   -38   525   in 1916   284   in 1973  
Season HDD   3678   3954   4232   -554   5274   in 1905   3496   in 2016  
Cooling Degree Days   0   #N/A   #REF!   #REF!   0   in 2023   0   in    
Month CDD                                 in    
Year CDD                                      
Maximum Dew Point   43   36   34   +9   52   in 1977   7   in 1992  
Minimum Dew Point   32   18   20   +12   42   in 2010   -3   in 1981  
Average  Dew Point   38   27   27   +11   45   in 2010   4   in 1992  
 Month Avg Max Dew Point   35.3   38.4   32.9   +2.4   40.7   in 1973   18.8   in 1960  
Month Avg Min Dew Point   24.8   17.4   17.8   +7.0   30.0   in 1973   3.9   in 1980  
Month Average Dew Point   30.3   27.9   25.7   +4.6   35.4   in 1973   13.1   in 1960  
Precipitation   1.34   .00   .14   +1.20   1.68   in 1958            
One Hour   .18   .00           .39   in 1958            
Hourly Rate   .44   .00           1.20   in 2010            
Month Precipitation   3.46   1.23   1.87   +1.59   5.49   in 1983   .04   in 1915  
Year Precipitation   12.59   10.62   8.97   +3.62   19.20   in 1979   4.43   in 1980  
Snow   T   0.0   0.2   -0.2   5.9   in 1958       in    
Snow Depth   0   0           14   in 1939       in    
Month Snow   0.1   0.5   3.0   -2.9   18.9   in 1941   0.0   in 2011  
Season Snow   9.1   34.2   30.3   -21.2   75.0   in 2005   4.7   in 1998  
    March 14, 2023     Record Record
Observed Daily Data   2023   2022   Norm   Depart   Highest Lowest
Maximum Humidity   99%   81%   89%   +10%   100%   in 2015   50%   in 1974  
Minimum Humidity   88%   42%   55%   +33%   97%   in 1986   23%   in 1982  
Average Humidity   94%   62%   72%   +22%   99%   in 1986   42%   in 1992  
Maximum Barometer   29.72   30.39   30.08   -00.36   30.65   in 1968   29.53   in 2018  
Minimum Barometer   29.17   30.28   29.70   -00.53   30.28   in 2022   28.50   in 1993  
Average Barometer   29.45   30.34   29.89   -00.44   30.36   in 1995   29.23   in 1993  
Average Wind   13.8   8.0   8.6   +5.2   19.5   in 1993   2.0   in 1994  
Direction   E   SW   NW       W S
High Wind Gust   36   28   28   +8   61   in 1993   13   in 1983  
Direction   WNW   SW   NW       SW N
Maximum Water Temp   42.3   41.9   40.0   +2.3   47.1   in 2012   35.9   in 2003  
Minimum Water Temp   41.5   39.0   38.1   +3.4   44.3   in 2012   33.6   in 2003  
Average Water Temp   41.9   40.5   39.1   +2.8   45.7   in 2012   34.8   in 2003  
Sunrise/ AM Twilight   6:58:51 AM   7:29:07 AM            
Sunset / PM Twilight   6:50:20 PM   7:19:08 PM            
Length Of Day   11:51:29                          
Special Conditions   Fog                                  
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Hour-by-Hour Weather For March 14, 2023            
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