Portsmouth Rhode Island Weather Almanac
Tuesday, March 31, 2020
Cloudy early, Partly Cloudy Day to Clear PM, Windy and Cooler
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    March 31, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   47   57   50   -3   71   in 1981   35   in 1970  
Minimum Temperature   32   37   34   -2   49   in 1998   15   in 1923  
Average Temperature   40   47   42   -2   59   in 1998   26   in 1923  
Precipitation   .00   .15   .16   -.16   2.13   in 1997        
One Hour   .00   .07           .68   in 1987            
Snow   0.0   0.0   0.1   -0.1   5.9   in 1970            
Snow Depth   0   0           4   in 1984            
HDD   25   18   23   +2   39   in 1923   6   in 1998  
CDD   0   0   0   +0   0   in              
Maximum Dew Point   36   50   38   -2   56   in 1998   12   in 1965  
Minimum Dew Point   25   31   25   +1   47   in 1987   2   in 1964  
Average  Dew Point   31   41   31   -0   51   in 1998   8   in 1965  
Maximum Humidity   92%   96%   87%   +5%   100%   in 2004   44%   in 1950  
Minimum Humidity   44%   76%   52%   -8%   97%   in 1987   14%   in 1963  
Average Humidity   68%   86%   69%   -1%   99%   in 1987   39%   in 1965  
Maximum Barometer   30.07   29.96   30.07   -00.00   30.70   in 2008   29.35   in 1974  
Minimum Barometer   29.97   29.63   29.78   +00.19   30.37   in 1967   29.01   in 1974  
Average Barometer   30.02   29.80   29.92   +00.10   30.50   in 1967   29.18   in 1974  
Average Wind   11.0   15.6   8.4   +2.6   21.2   in 1987   3.2   in 1996  
Direction   NNE   S   NE       SSE         S        
High Wind Gust   23   31   27   -4   51   in 1997   11   in 1973  
Direction   N   S   NE       NNE         S        
Wind Chill   27   29   27   -0             6   in 1964  
Maximum Water Temp   40.1   42.4   43.1   -3.0   47.3   in 1998   38.7   in 2014  
Minimum Water Temp   38.3   39.6   40.6   -2.3   46.0   in 2012   36.9   in 2015  
Average Water Temp   39.2   41.0   41.8   -2.6   46.6   in 2012   37.9   in 2015  
Sunrise/ AM Twilight   6:27:28 AM   5:59:35 AM            
Sunset / PM Twilight   7:10:33 PM   7:38:26 PM            
Length Of Day   12:43:05                          
Special Conditions   Haze                                  
Comments      
    March 31, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   51.0   44.3   45.9   +5.2   52.0   in 1946   36.0   in 1916  
Avg Minimum Temperature   35.6   30.1   30.3   +5.3   37.4   in 2012   23.4   in 1916  
Average Temperature   43.3   37.2   38.1   +5.2   44.7   in 2012   29.7   in 1916  
Total Precipitation   4.95   3.40   5.17   -.22   13.24   in 2010   .32   in 1915  
Total Snow   0.7   9.8   5.1   -4.4   31.6   in 1956   0.0   in 1903  
Total HDD   664   853   826   -162   1086   in 1916   622   in 2012  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   39.8   33.1   34.0   +5.8   41.6   in 2012   25.9   in 1960  
Avg Minimum Dew Point   24.2   19.5   19.6   +4.7   27.9   in 2010   11.1   in 1950  
Average  Dew Point   32.0   26.3   26.8   +5.2   34.6   in 2012   19.4   in 1960  
    March 31, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   10.76   12.51   12.37   -1.61   20.09   in 2010   6.16   in 2012  
Total Snow (since Jul 1 18)   12.9   21.1   30.8   -17.9   78.0   in 2005   5.0   in 1998  
Total HDD (since Jul 1 18)   4225   4741   4777   -552   5689   in 1918   3858   in #N/A  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For March 31, 2020  
Climate Weather for March 31  
Weather History For March 31  
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