Portsmouth Rhode Island Weather Almanac
Sunday, March 14, 2021
Mostly Cloudy early then Partly Cloudy, Windy and Colder
Climate Normal Period Climate Record Period  
1991- 2020   1893 - 2021  
    March 14, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Temperature   48   54   45   +3   62   in 2002   26   in 1896  
Minimum Temperature   24   39   30   -6   46   in 1927   10   in 1896  
Average Temperature   36   47   38   -2   51   in 2012   18   in 1896  
 Month Avg Max Temperature   45.8   52.1   43.0   +2.8   52.1   in 2020   33.1   in 1916  
Month Avg Min Temperature   27.4   35.6   28.4   -1.0   36.9   in 1973   19.3   in 1950  
Month Average Temperature   36.9   44.1   36.0   +0.9   44.7   in 1973   27.5   in 1916  
HDD   29   18   27   +2   47   in 1896   14   in 2012  
Month HDD   393   293   406   -13   525   in 1916   284   in 1973  
Season HDD   3960   3854   4232   -272   5274   in 1905   3496   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   24   33   34   -10   52   in 1977   7   in 1992  
Minimum Dew Point   5   26   20   -15   42   in 2010   -3   in 1981  
Average  Dew Point   15   30   27   -12   45   in 2010   4   in 1992  
 Month Avg Max Dew Point   28.3   39.3   32.9   -4.6   40.7   in 1973   18.8   in 1960  
Month Avg Min Dew Point   11.4   24.0   17.8   -6.4   30.0   in 1973   3.9   in 1980  
Month Average Dew Point   19.9   31.6   25.7   -5.9   35.4   in 1973   13.1   in 1960  
Precipitation   .00   .00   .14   -.14   1.68   in 1958            
One Hour   .00   .00           .39   in 1958            
Hourly Rate   .00   .00           1.20   in 2010            
Month Precipitation   .45   .80   1.87   -1.42   5.49   in 1983   .04   in 1915  
Year Precipitation   5.95   6.61   8.97   -3.02   19.20   in 1979   4.43   in 1980  
Snow   0.0   0.0   0.2   -0.2   5.9   in 1958            
Snow Depth   0   0           14   in 1939            
Month Snow   0.0   0.6   3.0   -3.0   18.9   in 1941   0.0   in 2021  
Season Snow   27.7   12.8   30.3   -2.6   75.0   in 2005   4.7   in 1998  
    March 14, 2021     Record Record
Observed Daily Data   2021   2020   Norm   Depart   Highest Lowest
Maximum Humidity   55%   62%   89%   -34%   100%   in 2015   50%   in 1974  
Minimum Humidity   30%   41%   55%   -25%   97%   in 1986   23%   in 1982  
Average Humidity   43%   52%   72%   -29%   99%   in 1986   42%   in 1992  
Maximum Barometer   30.06   30.32   30.08   -00.02   30.65   in 1968   29.53   in 2018  
Minimum Barometer   29.77   30.03   29.70   +00.07   30.28   in 1995   28.50   in 1993  
Average Barometer   29.92   30.18   29.89   +00.03   30.36   in 1995   29.23   in 1993  
Average Wind   11.2   11.9   8.5   +2.7   19.5   in 1993   2.0   in 1994  
Direction   NW   WNW   NW       W         S        
High Wind Gust   39   31   27   +12   61   in 1993   13   in 1983  
Direction   NW   NW   NW       SW         N        
High Heat Index                                      
Wind Chill   13   34   22   -9             -8   in 1993  
Maximum Water Temp   38.7   39.7   39.9   -1.2   47.1   in 2012   35.9   in 2003  
Minimum Water Temp   37.6   38.3   37.9   -0.3   44.3   in 2012   33.6   in 2003  
Average Water Temp   38.2   39.0   38.9   -0.8   45.7   in 2012   34.8   in 2003  
Sunrise/ AM Twilight   6:56:37 AM   6:29:07 AM            
Sunset / PM Twilight   6:51:38 PM   7:19:08 PM            
Length Of Day   11:55:01                          
Special Conditions   None                              
Comments   Daylight Savings Time Begins  
Hour-by-Hour Weather For March 14, 2021  
Climate Weather for March 14  
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