Portsmouth Rhode Island Weather Almanac
Friday, March 20, 2020
Cloudy early then Dense Fog to Cloudy PM, Very Warm
Climate Normal Period Climate Record Period  
1981- 2010   1893 - 2020  
    March 20, 2020     Record Record
Observed Daily Data   Observed   2019   Normal   Depart   Highest Lowest
Maximum Temperature   59   47   47   +12   67   in 2010   29   in 1923  
Minimum Temperature   42   28   31   +11   44   in 1921   7   in 1967  
Average Temperature   51   38   39   +12   55   in 2012   21   in 1923  
Precipitation   T   .00   .17   .00   1.24   in 1954        
One Hour   T   .00           .32   in 1996            
Snow   0.0   0.0   0.1   -0.1   6.2   in 1944            
Snow Depth   0   0           21   in 1956            
HDD   14   27   26   -12   44   in 1923   10   in 2012  
CDD   0   0   0   +0   0   in              
Maximum Dew Point   54   33   35   +19   56   in 2012   15   in 1967  
Minimum Dew Point   40   19   21   +19   41   in 2012   -6   in 1967  
Average  Dew Point   47   26   28   +19   49   in 2012   5   in 1967  
Maximum Humidity   97%   79%   86%   +11%   100%   in 2014   47%   in 1959  
Minimum Humidity   81%   35%   47%   +34%   87%   in 1998   16%   in 1991  
Average Humidity   89%   57%   66%   +23%   92%   in 1996   35%   in 1959  
Maximum Barometer   30.20   30.44   30.10   +00.10   30.68   in 1993   29.47   in 1996  
Minimum Barometer   29.77   30.33   29.79   -00.02   30.47   in 2011   28.73   in 1975  
Average Barometer   29.99   30.39   29.95   +00.04   30.57   in 1993   29.23   in 1975  
Average Wind   7.0   7.4   7.9   -0.9   23.3   in 1958   2.1   in 1981  
Direction   S   S   N       NE         NW        
High Wind Gust   20   24   26   -6   64   in 1958   10   in 2015  
Direction   SSW   S   N       NE         SE        
Wind Chill   37   28   22   +15             -7   in 1967  
Maximum Water Temp   40.0   39.4   40.9   -0.9   49.0   in 2012   35.2   in 2015  
Minimum Water Temp   38.7   37.2   38.8   -0.1   46.0   in 2012   33.9   in 2015  
Average Water Temp   39.4   38.3   39.9   -0.6   47.5   in 2012   34.6   in 2015  
Sunrise/ AM Twilight   6:46:04 AM   6:18:31 AM            
Sunset / PM Twilight   6:58:33 PM   7:26:07 PM            
Length Of Day   12:12:29                          
Special Conditions   Dense Fog                              
Comments      
    March 20, 2020     Record Record
Month-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
 Avg Maximum Temperature   51.6   41.6   44.5   +7.1   51.8   in 1894   31.5   in 1916  
Avg Minimum Temperature   35.7   27.4   29.1   +6.6   36.9   in 1973   19.5   in 1916  
Average Temperature   43.6   34.5   36.6   +7.1   43.9   in 1973   25.5   in 1916  
Total Precipitation   2.24   2.49   3.31   -1.07   8.05   in 1968   .08   in 1915  
Total Snow   0.7   9.6   4.0   -3.3   27.8   in 1956   0.0   in 2011  
Total HDD   423   604   563   -140   786   in 1916   417   in 1973  
Total CDD   0   0   0   +0   0   in     0   in    
Avg Maximum Dew Point   39.4   30.2   32.7   +6.6   40.7   in 2012   22.0   in 1960  
Avg Minimum Dew Point   23.7   16.8   17.8   +5.9   29.6   in 1983   4.8   in 1950  
Average  Dew Point   31.5   23.5   25.3   +6.2   34.4   in 1973   15.2   in 1950  
    March 20, 2020     Record Record
Year-to-Date Summary   Observed   2019   Normal Depart Highest Lowest
Total Precipitation   8.05   11.60   10.51   -2.46   19.20   in 1979   5.30   in 1901  
Total Snow (since Jul 1 18)   12.9   20.9   29.7   -16.8   75.0   in 2005   4.7   in 1998  
Total HDD (since Jul 1 18)   3984   4492   4514   -530   5437   in 1905   3622   in 2016  
Total CDD (since Jan 1)   0   0   0   +0   0   in     0   in    
                             
Hour-by-Hour Weather For March 20, 2020  
Climate Weather for March 20  
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