Portsmouth Rhode Island Weather Almanac
Tuesday, March 16, 2021
Partly Cloudy to Cloudy Evening, Continued Dry and Very Cold
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    March 16, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Temperature   35   43   46   -11   58   in 1986   28   in 1916  
Minimum Temperature   18   28   31   -13   45   in 2000   13   in 1932  
Average Temperature   27   36   38   -11   51   in 2000   22   in 1916  
 Month Avg Max Temperature   44.1   51.5   43.3   +0.8   51.8   in 1973   32.7   in 1916  
Month Avg Min Temperature   26.2   34.9   28.7   -2.5   37.3   in 1973   19.6   in 1950  
Month Average Temperature   35.5   43.4   36.3   -0.8   44.9   in 1973   27.1   in 1916  
HDD   38   29   27   +11   43   in 1916   14   in 2000  
Month HDD   472   345   460   +12   607   in 1916   322   in 1973  
Season HDD   4039   3906   4286   -247   5337   in 1905   3532   in 2016  
CDD   0   0   0   +0   0   in   0   in    
Month CDD   0   0   0   +0   0   in     0   in    
Year CDD   0   0   0   +0   0   in     0   in    
Maximum Dew Point   17   28   35   -18   54   in 2002   3   in 1992  
Minimum Dew Point   -8   5   20   -28   42   in 1990   -10   in 1980  
Average  Dew Point   5   17   28   -23   48   in 1990   2   in 1992  
 Month Avg Max Dew Point   26.2   37.9   33.1   -6.9   41.2   in 1973   19.2   in 1960  
Month Avg Min Dew Point   9.1   21.9   18.1   -8.9   30.1   in 1973   2.9   in 1980  
Month Average Dew Point   17.7   29.9   25.9   -8.3   35.7   in 1973   13.7   in 1960  
Precipitation   .00   .00   .14   -.14   1.76   in 1900            
One Hour   .00   .00           .44   in 1953            
Hourly Rate   .00   .00           .62   in 2011            
Month Precipitation   .45   .80   2.15   -1.70   5.49   in 1983   .04   in 1915  
Year Precipitation   5.95   6.61   9.25   -3.30   19.20   in 1979   4.43   in 1980  
Snow   0.0   0.0   0.2   -0.2   7.2   in 1896            
Snow Depth   0   0           9   in 1999            
Month Snow   0.0   0.6   3.4   -3.4   20.3   in 1916   0.0   in 2021  
Season Snow   27.7   12.8   30.7   -3.0   75.0   in 2005   4.7   in 1998  
    March 16, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   55%   72%   82%   -27%   100%   in 2011   46%   in 1980  
Minimum Humidity   17%   30%   46%   -29%   81%   in 2007   17%   in 2021  
Average Humidity   36%   51%   64%   -28%   90%   in 2007   33%   in 1980  
Maximum Barometer   30.34   30.64   30.08   +00.26   30.82   in 1993   29.38   in 1981  
Minimum Barometer   30.21   30.49   29.79   +00.42   30.51   in 1993   29.08   in 1981  
Average Barometer   30.28   30.57   29.94   +00.34   30.67   in 1993   29.23   in 1981  
Average Wind   6.7   9.9   8.6   -1.9   20.6   in 1956   3.0   in 2012  
Direction   N   N   WNW       NE         SE        
High Wind Gust   22   20   27   -5   62   in 1956   12   in 2012  
Direction   N   NNE   WNW       NE         ESE        
High Heat Index                                      
Wind Chill   9   18   21   -12             -2   in 1956  
Maximum Water Temp   38.0   39.6   40.1   -2.1   45.4   in 2012   36.4   in 2015  
Minimum Water Temp   36.5   38.2   38.1   -1.6   44.6   in 2012   34.4   in 2015  
Average Water Temp   37.3   38.9   39.1   -1.9   45.0   in 2012   35.4   in 2015  
Sunrise/ AM Twilight   6:53:15 AM   6:25:44 AM            
Sunset / PM Twilight   6:53:52 PM   7:21:22 PM            
Length Of Day   12:00:37                          
Special Conditions   None                              
Comments   15 consecutive days without rain  
Hour-by-Hour Weather For March 16, 2021  
Climate Weather for March 16  
Weather History For March 16  
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